‘Crazy’ Your husbands experience with sharps in the trash is horrible!! What a huge OSHA violation. I guess it happens, but that’s so grossly irresponsible whoever did that.
I’m a big fan of 91% Isopropyl myself. You can use it to make a great cold pack. Use 2 gal freezer zip-locks, one bottle of 91% Isopropyl dumped in one bag, fill the empty bottle with water twice and dump in bag. Purge the air and seal. Place it zipper down in the other bag, and put it in the freezer. It won’t freeze, but makes a great slushy, gel pack you can wrap around an injured extremity. I like to keep 2 in the freezer. One stays cold while you use the other and can alternate!
Regarding First Aid supplies, you have to remember the first casualty of conflict is the plan. You will never have enough supplies if it stays bad for long and will have to improvise. In today’s mind set, everything is disposable. I would suggest you refer to my post in the Health Care Emergencies topic on the young lady in Africa that treated her family that had Ebola only wearing dish gloves, trash bags on her feet and a bleach bath at the door way.
Yes, you need supplies. I would suggest that bleach, cleansers, etc. are important. You need disposable, but you can reuse an N95 mask and a lot of other stuff if you had to. It depends on your storage space and resources as to how much stuff you can stock up on. Take First Aid classes or read up on First Aid skills which will be just as important has having tons of stuff which won’t do much good if you don’t know what to do with it.