I know that Stack Overflow, etc. keep track of which items I've voted on, as I can't duplicate my vote, etc. But I don't see a way to directly access the items that I've voted on.
For example, I might have downvoted something and left a comment. If the item was edited to correct my complaint, I would like to be able to remove that vote, but I also don't want to bookmark every vote I make. It seems like the sites should present that information to me directly.