We paid for ours, though as it was before a justice of the peace, it really didn't cost much. My mum did buy me that nice green dress, which I was able to wear on a few other occasions afterward.
I opted not to take my husband's name, as it was an additional twenty dollars for the privilege of changing my last name.
Afterward, we stopped by a friend's house for a party. Most of the attendees didn't know we'd got married that day, and thought they were just attending a birthday party for our friend (who
did know and had suggested combining celebrations).
If I was going to change any one thing, I think I'd have told more people ahead of time. Some of them were ticked off that they didn't get to give us anything. At first I thought, "But I don't want or need any presents!" and then later I realized it wasn't about me, it was about them getting to make that choice for themselves.
But, all in all, I think it went off fantastically.
In general, though I know weddings mean different things to different people, I don't think anyone should have to strain themselves financially to have a wedding, or provide one for their kids.