Suggestion: When viewing all our comments, make the amount of karma we have on that specific comment visible without having to click on it like on posts.

It would save a lot of time in the long run, instead of having to look for the comments that gave you a sudden boost in karma by clicking each and every one.

EDIT: It'd also be cool if it told you how much karma you gained on a specific post or comment since last time you checked, although that's just a secondary idea.