Basketball fan or not, you should fill out a bracket for the NCAA division I men's basketball tournament! Head over to challonge.com/marchmadness between Sunday and Wednesday to fill out your bracket. The 64th seed won't be decided until Tuesday.
If you're running a pool, have participants fill out our bracket and send you a link to it. You'll then be able to grade the brackets and rank them against each. You can specify the number of points awarded per round (1/2/4/8/16/32, 1/2/3/4/5/10, etc.).