http://tane.us/ac/
This is a little browser-based widget I found that plays Animal Crossing music (via YouTube) to the time of day. So, for example, if it's 1 PM, it'll play the appropriate theme from the game. The music loops and automatically changes to each hour. The background also changes colors to match the time of day, and you can even switch soundtracks between the original, Wild World/City Folk and the upcoming New Leaf. I find it to be a very pleasant and handy way to keep track of time, as well as pass time when a day gets slow.
Kinda wish it'd play the town tune every hour, though...
