I should really back things up more often.

I used to delay backing up my computer on my external hard drive because it really bogged down my system.  Before I discovered Time Machine Editor I used to just do manual back ups of photographs, movies and music.  I recently came across this screen shot from last May when I backed up my entire iPhoto library before switching to Lightroom as my main photograph organizer.  Needless to say this was one of those nights when I ended up going to bed early.