Chaz, facebook, tumblr, gmail, amazon are pretty dead even lol I usually bounce around all of them a bit.
but i'd say my amazon wishlists are the MOST ridiculous, especially since they got that browser button so you can add things from any other site. I have wishlists for all KINDS of things.. puppy wishlists, adult dog wish lists, clothes I want, apartment furnishings, art, pens.. lol it's insane.