I meant to post this sooner but I forgot - duh! There's a great contest on Winston Breen's website: www.winstonbreen.com/puzzleparty.html
He has a puzzle every day, starting yesterday and going until April 22. Every day, someone with the correct solution to that day's puzzle will be chosen at random and will win a copy of his latest book The Potato Chip Puzzles. At the end of the week, one person with all seven correct solutions, will be chosen at random and will win every single one of G.P. Putnam's Sons Spring 2009 children's and YA books, plus advance reading copies of numerous Fall 2009 books!
So, even if you didn't start yesterday (I missed it too if it makes you feel better) you can still enter for the rest of the daily prizes. Also, the previous puzzles are still available so you can solve them and enter for the grand prize. I just emailed the solution to today's puzzle (I think it's the correct solution) and plan to do the rest of them. I'm also going to buy the book tomorrow - it looks great!