by Deleted User 428 » 10 Sep 2010, 10:06
Walmart sells those hot/cold packs that you throw in the freezer or microwave. That's what I used and they work great. It holds the heat for quite a while, I would think longer than the hot water bottle. I thought of the hot water bottle too but I couldn't find one anywhere. That's when I found the hot/cold pack. They were only $1.99 so I bought a few because I didn't know how long they would last. I have only used the first one and it's still in great shape. Make sure you put a towel or something between you and the pack though if you go this route. They can get pretty warm. Good luck!