Sometimes, instead of doing productive things I choose to spend hours meticulously rating and organizing my iTunes music collection.
Sometimes I refresh Google Reader until a new post shows up, or I refresh Facebook until I see something I want to comment on.
Sometimes I watch movie trailers, or read video game forums, or watch episodes for TV shows in chronological order.
Sometimes I clean my house to avoid doing something more productive. Sometimes I do something productive to avoid having to clean my house.
Sometimes I say home instead of going out, for no reason at all.
Sometimes I sleep in for 15 extra minutes, and then arrive late to work, and then spend the next three or four hours tense and frustrated that I was late again.
If I could change anything about myself, it would be the wonky cost/benefit analysis I seem to apply on a day to day basis.