The feature, and button, that I use most often on my internet browser (Internet Explorer, in my case) is the refresh button. Whenever I check my e-mail account on-line (such as my Yahoo! account), I always have to refresh it. And I usually refresh it, at least, two times (it's all based on my OC numbers).
Although, I do this not only with my e-mail accounts but also with many websites that I vist. Including websites with forums, or news websites, etc.
I think I do this because of the cache, that the computer has. Although, I know what I do is unreasonable and, I would say, most people don't do it, and get along, on-line, fine.
Either way, before I start rambling on, for too long. All I was wondering, is if anyone else has this obsession (or problem, or whatever you wish to call it).
Thanks,
Andrew