Daytum is a site that lets you collect and graph any sort of data you want.  It is currently in private beta, but I can't wait until it goes public.  Users each get their own site to display whatever type of data they are tracking.  The current examples are pleasantly mundane:  The cat's I've seen; The websites I visited this week; The amount of times I used technology this week; Meals I've made for dinner.  The graphic design of the data is fresh and simple.  Just one more example of why I'm changing my opinions about charts and graphs.