Also. Don't hold things. Simple issues that can be done quickly i can quite often squeeze in between issues that take a lot of time. I don't work on just one issue at a time.
If they are bugs your finding then report them in the bug report forums. If you wanting something changed from the way it currently works, then post a suggestion in the suggestions section.
I find some bugs on my own as i use the software. But many bugs i will not know about unless someone reports them. Primary reason is i do not use all of the features of the software myself, so people have to report problems they find.