Internet Explorer Problems

Although I'd thought I'd worked out the problems my website was having with Internet Explorer, but the next time I tested it, there were still quite a few problems. I haven't quite fixed everything yet, but I'm getting there. I've set up Google Analytics and see that, so far, I have some users who are using Internet Explorer. Even though it would be much easier to say "sorry, I'm not supporting IE," I want to make the website easily accessible to everyone. Hopefully I'll get it working soon.