1.) To get a selection of Jobs:

Buy a $999 Computer, search for your Job, and sell it after searching and getting a job...If you dont like them, Sell it, and buy it again tomorrow. This means you get all $999 back from the Computer.

2.) To get rid of unwanted rubbish/water spillages, or unwanted trees etc outside of your land, do the Following :

Hold Ctrl + Shift + C down. Let go, and Type in the box ; move_objects on...Pick up the Item, and drag as you would to the delete bar...Then, to turn it off : Hold Ctrl + Shift + C down. Let go, and Type in the box ; move_objects off.This should reset the Normal Mode...(This also means that while the cheat is active, you can build and plant trees outside your area too.)

3.) To get rid of Mail and Newspapers :

Hold Ctrl + Shift + C down. Let go, and Type in the box ; move_objects on...Click on the Mailbox, and Delete.To de-activate, Hold Ctrl + Shift + C down. Let go, and Type in the box ; move_objects off. This should reset the Normal Mode.