I accidentally posted the same question twice, so I'll add this response in both. I found a solution that seems to work great. My neighbor loaned me a product called Kindergarters. It's a band that wraps around Danny's sock and keeps it in place. He wore them all day long and never got his socks off! It's not elastic so I don't really understand how it stays on, but it does. The website says they'll work on mittens too. I ordered some online today - www.kindergarters.com
- and I'll have to hide from my neighbor until they arrive lol. I ordered a bunch cause they're cheap and they'll make cute stocking stuffers (no pun intended) for my mommy friends.