Over the years plenty of useless files have found their way on my computer (maybe even bad ones) and now I believe its time to do a fresh install. So, I really want to make sure I dont do anything wrong or delete anything important. I have a few questions left. Loading a backup would be useless because it would restore the bad files again. But I was wondering, as for files that I would like to keep, is it alright if I simply copy them from a Time Machine backup? Like, I could copy all the stuff I want to keep to an external hard drive (for example my iTunes library, my iPhoto library, various documents). But do I need this at all? I mean I could just simply go to the backup volume and manually copy these files, right? What are the pros and cons? What do you suggest?