First go to Homer's House. Look under Bart's bed. Get the piece of Paper. Look in Lisa's desk. Get paper from right hand drawer. Go to Springfield Elementary. Look in the bottom right drawer of Miss Hoover's Desk. Get the Gerbil Food. Look in cabinet under Gerbil. Get the Card. Look in Bart's Locker(the one on the left.)

Get the paper on the door.

Go to Town Hall. Get Card on floor to the left of Mayor Quimby's Desk. Look in middle drawer get Krusty's Key.

Go to Krustylu Studios. Look at TV. Get the Card.

Go to Retirement Castle. Open Grandpa's bottom drawer. Get StoneCutters Ring.

Go to StoneCutters Hall. Look in podium. Open the box. Get the key. Get the book next to the podium.

To Get the rest of the cards:

Moe's Tavern: Open secret door behind bar. Open one of the boxes. Get the card on the floor in the background.

Library: In ashtray next to Krabappel's desk.

Church: In podium.

SNPP: In reactor Core. Look next to the door to the left.

Retirement Castle: Sometimes there will be a card near the coffee table next to the door of Grandpa's room.

Once You have gotten the StoneCutter's ring and the cards in the Elementary School, SNPP, and Krustylu Studios, just go to Town Hall, the Library, and the Church to collect the rest of the cards. They're always in the same place as the first ones you found. Though sometimes they're not there at all. But don't worry, when you come back, they'll be there.