DIY Ice Packs with simple ingredients you probably already have. These stay soft, so they easily mold around a painful knee or other aches and pains.
Home Made Gel Ice Packs - This is awesome! My back got sunburned so I got one of those huge ziploc bags they have for storing toys and made a huge version of this and laid on top of it.
1 part rubbing alcohol, 3 parts water in a freezer bag = perfect ice packs that don't harden in the freezer.
Homemade Ice Pack
Here are a few different options for having ice packs and bags on hand for first aid as well as frugal ideas for keeping your lunchbags and camping coolers nice and chilled.
Knee Ice Pack, Cold Wrap by Cool Relief
How To Make Homemade Ice Packs by The Make Your Own Zone
Medical Life Hack ~ How to make an ice pack. (Now with 20% more savings and 3.14159% more rhyming!)
DIY Ice Pack and Cozy Tutorial
DIY Ice packs are a great way to save money!
Diary of a Preppy Mom: Runner's Knees -- Ice Pack Pocket!
Don't freeze up if you can't find an ice pack! Turn to your kitchen sponge for first aid relief.
Home made flexible ice pack.. made these for hubby and they are perfect!
Rheumatic Princess: DIY knee ice packs
Back & Knee Gel Ice Packs will be available soon $5! Come Join Our Launch Party - https://www.easyposturebrands.com/pages/back-knee-ice-pack-prelaunch
"Frozen Fox" Ice Pack Sewing Tutorial: keep it in the freezer for all of the "boo boos"