Elixir Bank/Duplicator...
	Keeping the game active...
	Various Achievements...

Step 1
Start an upgrade in your lab and fill your camps and barracs with soldiers, do the cheapest you got for the camps and the 1 you're upgrading for the barracs.

Step 2
Wait till the upgrade is finished and cancel the soldiers in the barracs.

I have a way to keep the clash of clans screen active without having to touch the screen. So, normally the game pops up an inactivity warning after about four minutes of inactivity. This app briefly take the game, puts it in the background and then brings it back to the foreground. This has an effect of resetting the timeout clock. The app launches a service which can be paused/exited from the notification window. Now since the app keeps the screen on, it is battery intensive, but it really helps to protect your loot in between building troops for farming.... On the google play store it's called AppCycle Pro.

Completing any of the following tasks will grant in-game XP and Gems, as well as XP in Google Play.

Achievement	How to unlock
Bigger & Better (10 in-game XP / 5 Gems / 500 Google Play XP)	Upgrade Town Hall to level 3.
Bigger & Better II (100 in-game XP / 10 Gems / 1,000 Google Play XP)	Upgrade Town Hall to level 5.
Bigger & Better III (1,000 in-game XP / 20 Gems / 2,000 Google Play XP)	Upgrade Town Hall to level 8.
Bigger Coffers (10 in-game XP / 2 Gems / 500 Google Play XP)	Upgrade a Gold Storage to level 2.
Bigger Coffers II (100 in-game XP / 5 Gems / 1,000 Google Play XP)	Upgrade a Gold Storage to level 5.
Bigger Coffers III (1,000 in-game XP / 10 Gems / 1,500 Google Play XP)	Upgrade a Gold Storage to level 10.
Conqueror (10 in-game XP / 5 Gems / 500 Google Play XP)	Win 25 Multiplayer battles.
Conqueror II (100 in-game XP / 10 Gems / 1,000 Google Play XP)	Win 250 Multiplayer battles.
Conqueror III (1,000 in-game XP / 20 Gems / 1,500 Google Play XP)	Win 5,000 Multiplayer battles.
Elixir Escapade (10 in-game XP / 5 Gems / 500 Google Play XP)	Steal 20,000 Elixir.
Elixir Escapade II (100 in-game XP / 10 Gems / 1,000 Google Play XP)	Steal 1,000,000 Elixir.
Elixir Escapade III (1,000 in-game XP / 20 Gems / 1,500 Google Play XP)	Steal 100,000,000 Elixir.
Empire Builder (10 in-game XP / 5 Gems / 500 Google Play XP)	Rebuild the Clan Castle.
Empire Builder II (100 in-game XP / 10 Gems / 1,000 Google Play XP)	Upgrade Clan Castle to level 2.
Empire Builder III (1,000 in-game XP / 20 Gems / 2,000 Google Play XP)	Upgrade Clan Castle to level 4.
Firefighter (50 in-game XP / 100 Gems / 500 Google Play XP)	Destroy 10 Inferno Towers in Multiplayer battles.
Firefighter II (500 in-game XP / 200 Gems / 1,000 Google Play XP)	Destroy 250 Inferno Towers in Multiplayer battles.
Firefighter III (5,000 in-game XP / 1,000 Gems / 2,000 Google Play XP)	Destroy 5,000 Inferno Towers in Multiplayer battles.
Friend in Need (10 in-game XP / 5 Gems / 500 Google Play XP)	Donate 100 Clan Castle capacity worth of reinforcements.
Friend in Need II (100 in-game XP / 25 Gems / 1,000 Google Play XP)	Donate 5,000 Clan Castle capacity worth of reinforcements.
Friend in Need III (1,000 in-game XP / 20 Gems / 2,000 Google Play XP)	Donate 25,000 Clan Castle capacity worth of reinforcements.
Get those Goblins! (10 in-game XP / 5 Gems / 500 Google Play XP)	Win 10 stars on the Campaign Map.
Get those Goblins! II (100 in-game XP / 10 Gems / 1,000 Google Play XP)	Win 50 stars on the Campaign Map.
Get those Goblins! III (1,000 in-game XP / 20 Gems / 2,500 Google Play XP)	Win 150 stars on the Campaign Map.
Gold Grab (10 in-game XP / 5 Gems / 500 Google Play XP)	Steal 20,000 Gold.
Gold Grab II (100 in-game XP / 10 Gems / 1,000 Google Play XP)	Steal 1,000,000 Gold.
Gold Grab III (1,000 in-game XP / 20 Gems / 1,500 Google Play XP)	Steal 100,000,000 Gold.
Heroic Heist (10 in-game XP / 5 Gems / 500 Google Play XP)	Steal 20,000 Dark Elixir.
Heroic Heist II (100 in-game XP / 10 Gems / 1,000 Google Play XP)	Steal 250,000 Dark Elixir.
Heroic Heist III (1,000 in-game XP / 20 Gems / 2,500 Google Play XP)	Steal 1,000,000 Dark Elixir.
Humiliator (10 in-game XP / 5 Gems / 500 Google Play XP)	Destroy 10 Town Halls in Multiplayer battles.
Humiliator II (100 in-game XP / 10 Gems / 1,000 Google Play XP)	Destroy 100 Town Halls in Multiplayer battles.
Humiliator III (1,000 in-game XP / 50 Gems / 2,500 Google Play XP)	Destroy 2,000 Town Halls in Multiplayer battles.
League All-Star (100 in-game XP / 250 Gems / 500 Google Play XP)	Join the Crystal League.
League All-Star II (500 in-game XP / 1,000 Gems / 1,500 Google Play XP)	Reach the Master League.
League All-Star III (2,000 in-game XP / 2,000 Gems / 3,000 Google Play XP)	Become a Champion!
Mortar Mauler (10 in-game XP / 5 Gems / 500 Google Play XP)	Destroy 25 Mortars in Multiplayer battles.
Mortar Mauler II (100 in-game XP / 10 Gems / 1,000 Google Play XP)	Destroy 500 Mortars in Multiplayer battles.
Mortar Mauler III (1,000 in-game XP / 20 Gems / 2,500 Google Play XP)	Destroy 5,000 Mortars in Multiplayer battles.
Nice and Tidy (10 in-game XP / 5 Gems / 500 Google Play XP)	Remove 5 obstacles (trees, rocks, bushes).
Nice and Tidy II (100 in-game XP / 10 Gems / 1,000 Google Play XP)	Remove 50 obstacles (trees, rocks, bushes).
Nice and Tidy III (1,000 in-game XP / 20 Gems / 2,000 Google Play XP)	Remove 500 obstacles (trees, rocks, bushes).
Release the Beasts (10 in-game XP / 5 Gems / 500 Google Play XP)	Unlock Archer in the Barracks.
Release the Beasts II (100 in-game XP / 10 Gems / 1,000 Google Play XP)	Unlock Wall Breaker in the Barracks.
Release the Beasts III (1,000 in-game XP / 20 Gems / 2,000 Google Play XP)	Unlock Dragon in the Barracks.
Spoils of War (100 in-game XP / 25 Gems / 500 Google Play XP)	Collest 800,000 Gold in Clan War bonuses.
Spoils of War II (500 in-game XP / 100 Gems / 1,000 Google Play XP)	Collect 15,000,000 Gold in Clan War bonuses.
Spoils of War III (5,000 in-game XP / 1,000 Gems / 2,000 Google Play XP)	Collect 100,000,000 Gold in Clan War bonuses.
Sweet Victory! (10 in-game XP / 5 Gems / 500 Google Play XP)	Achieve a total of 75 trophies in Multiplayer battles.
Sweet Victory! II (100 in-game XP / 10 Gems / 1,000 Google Play XP)	Achieve a total of 750 trophies in Multiplayer battles.
Sweet Victory! III (1,000 in-game XP / 450 Gems / 3,000 Google Play XP)	Achieve a total of 1,250 trophies in Multiplayer battles.
Unbreakable (10 in-game XP / 5 Gems / 500 Google Play XP)	Successfully defend against 10 attacks.
Unbreakable II (100 in-game XP / 50 Gems / 1,000 Google Play XP)	Successfully defend against 250 attacks.
Unbreakable III (1,000 in-game XP / 100 Gems / 2,000 Google Play XP)	Successfully defend against 5,000 attacks.
Union Buster (10 in-game XP / 5 Gems / 500 Google Play XP)	Destroy 25 Builder's Huts in Multiplayer battles.
Union Buster II (100 in-game XP / 10 Gems / 1,000 Google Play XP)	Destroy 250 Builder's Huts in Multiplayer battles.
Union Buster III (1,000 in-game XP / 30 Gems / 1,500 Google Play XP)	Destroy 2,500 Builder's Huts in Multiplayer battles.
Wall Buster (10 in-game XP / 5 Gems / 500 Google Play XP)	Destroy 10 Walls in Multiplayer battles.
Wall Buster II (100 in-game XP / 10 Gems / 1,000 Google Play XP)	Destroy 100 Walls in Multiplayer battles.
Wall Buster III (1,000 in-game XP / 20 Gems / 2,000 Google Play XP)	Destroy 2,000 Walls in Multiplayer battles.
War Hero (50 in-game XP / 50 Gems / 500 Google Play XP)	Score 10 stars for your clan in Clan War battles.
War Hero II (500 in-game XP / 200 Gems / 1,000 Google Play XP)	Score 150 stars for your clan in Clan War battles.
War Hero III (1,000 in-game XP / 1,000 Gems / 2,500 Google Play XP)	Score 1,000 stars for your clan in Clan War battles.
X-Bow Exterminator (50 in-game XP / 50 Gems / 500 Google Play XP)	Destroy one X-Bow in a Multiplayer battle.
X-Bow Exterminator II (100 in-game XP / 100 Gems / 1,000 Google Play XP)	Destroy 250 X-Bows in Multiplayer battles.
X-Bow Exterminator III (1,000 in-game XP / 200 Gems / 2,000 Google Play XP)	Destroy 2,5000 X-Bows in Multiplayer battles.