This is just one of the many ways that a first aid kit can be done. It has the basics, with a couple of not so ordinary things.
It contains...
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Several Singles wet wipes antibacterial
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1 3 inch ace wrap
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1 medical scissors
1 forceps
1 1.5 oz tube First Aid Ointment
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2 self stick wraps
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1 eye glass repair kit
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10 2 x 2 gauze pads
1 partial roll of 3 in gauze wrap
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Variety sized band aids
Tweezers
Small pocket knife
Large and small clippers
2 sutures
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Sewing kit
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5 - 6 pairs gloves
Medical tape both paper and cloth tape
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Bio-fuel and matches in pill bottle
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Triangle bandage
Bandanna
Nylon strap
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4 pack of hand warmers
(Each separation is in a separate regular or small zip-lock bag.)
I can, and will put more in this over time, but for now, if I had to leave with it? It would get me through in the short term.
We're working on a red cross to delineate this as the First Aid Bag.
This bag is a single compartment bag that I picked up several years ago from Old Navy.
Walmart sells a duel compartment shaving kit bag for about $5.00 (in Utah) in their travel size items area. This one does have the flap on the front, but it would only be good for things with a very narrow profile.
These zip-lock bags can be found at hobby stores, craft stores, on Amazon.com. They come in a variety of sizes, and a variety of quantities. They have come in handy for not only these kinds of projects, but storage for all sorts of things like beads, dice, seeds, model parts, the extra screws, nuts and from "need to assemble" furniture, to bathroom kits.
I don't like it when items "wander" or "float" around in the bag. Putting them in bags keeps them compartmentalized.
Every first aid kit is unique to it's user(s). Put what you know, and will use in your kit. Make sure you "know" your kit. Even purchased with all the "bells and whistles" you need to know YOUR kit.
You can also check what else I have here.