Thing 19 is picking a Web 2.0 from the Web 2.0 Awards sponsored by seomoz.org. The awards are broken down into 41 categories. I chose the "Fun Stuff" category since I love finding websites that make me laugh (my most recent favorite is lovelylisting.com - guaranteed for a laugh)
Under the "Fun Stuff" category, I chose hairmixer.com. On this site you can take pictures of two people and mix their faces/hairstyles. So I uploaded a headshot picture of myself and then played around a bit - I put my head on Drew Barrymore, Kate Gosslin (Jon & Kate + 8), Taylor Swift, my sister, and a friend of mine - and, in honor of Sesame Street's 40th Anniversary- ELMO! :) This could perhaps be a practical way to try out new hairstyle, but mostly I think it's a fun, easy way to do photoshopping.
I think what I enjoyed most about this site is that you don't have to create an account - which can sometimes be a barrier to patrons using various website.
18 down, 5 to go!