I'm old school. I use the quick reply and manually use/add my own tags. Normal HTML tags use the brackets, or these things. [ ] Whatever is in the bracket means things. To make what I mean show up, I'll use the tags with { } instead of the brackets.
{quote} {/quote}
That's the quote tags I manually enter. There are also bold tags {b}, underline {u}, etc. Quote is probably the one I use most often. Don't forget the end tag. {/}
Edit: I also use the image tag a bit. Get the link to the image and use {img}link goes here{/img}