Double Posts?
 

The last couple of times I went to post something it ended up getting posted twice and I didn't double click the reply button or anything. Has this happened to anyone else ever?

It occasionally happens. You can just use the "Edit Post" button to delete one of them when you notice it.

All the Mods are aware this happens sometimes due to a forum software glitch so it's no problem. Just delete one as DTravel suggests.