I don’t know who thunk this one up; I found it in a book. However, it seems as if it would be a good Saturday to sit back and challenge your brain with a puzzle. Or buy a new jigsaw puzzle and involve the whole family. Here are a few internet puzzle sites that you might enjoy:

The SET Daily Puzzle
Quiddler Daily Puzzle
Map and Geography Games
Tetris (pretty good flash version–If you know of a better version to play online on my Mac, tell me.)