In the past when I've simply clicked on clean it has wiped out all my site specific trackers or cookies or whatever they are. This leads to my having to reestablish my machine on sites that I want to access such as banks and credit unions. This is a PITA. I don't understand all the varied prefixes and suffixes when I look at the lists brought up by "analyze". Is there a simple way to figure out which items to keep so that this will not be necessary yet I can delete unnecessary items?