When you say on here, I assume you mean on the DB forum. I'm going to assume that you use Internet Explorer since the vast majority of people do. If you really want things to seem normal, but, not show the DB Forum, then open up the history ctrl-H then at the top of the History pane, it says View and when you click on there, you can sort your history. Change to sort by site. Then, scroll through the site list and when you see ones that you don't want H to see, mouse over that site name and right click and then select delete.
If I was interested in snooping and got on a computer my W uses and there was no browser history, it would be a red flag for me that she was doing something that she didn't want me to know about.
One other thing. Firefox remembers what you type into input boxes like when you enter your credit card number on an online merchant or your search terms in google. I don't know what Safari does, but, if you are using Firefox, you might want to go to google and in the search box, type each letter of the alphabet and see what search terms you've used. I was using a keyboard logger on the family computer, but, when my W searched on some interesting search terms using Firefox, I could defend my knowing about them because of the way Firefox caches those search terms.
