Here is a quick idea for your first aid kit that I never thought about till today after I managed to cut my thumb to the bone. I have a new first aid kit, and was digging through it for bandaids (after I cut myself) bleeding all in the kit. My biggest problem was when I got to the bandaids and pulled one out and I got the whole roll. then had touble pulling the bandaids apart without having my thumb to use. So here is my suggestion go thru your kit and pull all those bandaids (and anything else that needs it) apart before you have to use them one handed, and try using the contents with only one hand.
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Depend on yourself, help those who are not able, and teach those that are.