I constantly sew in my underwear. Sometimes, I don't even realize it has happened until someone knock on my door and I am scrambling for my bathrobe or whatever fabric I have near me that is big enough to be a cover. I'll be sewing in my normal clothes and then, a few moments later, I am nearly naked! It's like, what happened?! Did some sewing ninja come out and strip me or something?
Lately, though, I have just had the bad luck of jumping into things without really thinking it through. I have screwed up quite a few projects recently due to that. I get so inspired that I just have to do it! As in, Righthisverymoment! And then I screw it up and I just want to kick myself!
That and not reading directions enough. I'll start off reading the directions, and then I think I know what they are talking about and where they are going, only to be stumped a few minutes later, look back at the directions, and find that I had absolutely no idea what I was doing.
You'd think I'd learn!