My dance is tomorrow, but the straps on my dress are a bit too long, making it loose and not supporting me enough. What can I do to fix it? I tried pinning it, but the pins were very obviously there. The dress is completely black, here's a link to what it looks like. I added straps on. http://www.modcloth.com/shop/dresses/storm-in-the-air-dressMy dance is tomorrow, but the straps on my dress are a bit too long, making it loose and not supporting me enough. What can I do to fix it? I tried pinning it, but the pins were very obviously there. The dress is completely black, here's a link to what it looks like. I added straps on.

you could just try pinning it then stitching it with black thread and a sewing needle and remove the pins.. it's very simple but if you're unsure how I'm sure there will be a youtube video somewhere!