I don't consider anything that I enjoy doing as a waste of time. We spend enough time in our lives doing what we HAVE to do, so having the opportuniity to do what we WANT to do is very special.
My favourite ways of 'wasting' my time include:
Meeting up with friends
Playing with my mini peeps
Watching other TV shows I like
Playing in the Lj sandbox wiith my chums
Not giving a shit what other people think of me