Here is a handy list of 23 tips that allows you to get more out of your TiVo or DVR (although a good chunk of the tips are specifically for TiVO). Learn anything from adding hard drives to transferring content to a PC to customizing the GUI and more with this convenient list (complete with links). It is a must bookmark for any TiVo user.

Hacking TiVo: 23 Tips to Turbocharge Your DVR [Via Consumerist]