No permission slip needed.
Go shopping after your basic first aid class tomorrow.
Mission: Put together a "good enough" every day carry first aid kit, and bring it in cheap.
$10 kit, for me:
6 oz pump bottle isopropyl alcohol-based hand sanitizer
bag of 5 pr. vinyl gloves
18 benzylkonium chloride (BZK) sanitary hand/(wound) wipes
4" generic Ace wrap
3 roller gauze rolls (1",2",3")
8 sterile 2"x2" gauze dressings
1 1/3 oz. tube generic triple antibiotic ointment
6 Tylenol brand Extra Strength (500mg) tabs
40 tab btl. of generic ibuprofen (200mg)
1 roll of 1" waterproof first aid tape
That alone covers an awesome amount of simple first aid needs. The idea is a cheap kit you can keep in your car, or at work, use and replenish as necessary, and not give two hoots if you need to replace it, or items go bad or get used up. You'll be miles ahead of 95% of the population.
$20 "luxury kit", same trip:
The above, plus
1 btl of 175 standard aspirin (325 mg)
2 standard bars Dial antibacterial soap
Craft & sew kit, with seam (clothes) ripper, needles, and small safety scissors (+ thread! - for sewing, NOT suturing!)
AAA batteries for above
Blistex lip balm
6 oz. tube of SPF 30 sunscreen
10' roll of 2" duct tape (woodland camo, dayglo pink, take your pick)
4 prs asstd. tweezers on card
1 J&J 12 item first aid kit, in small plastic case, with
2 more BZK wipes
2 more pairs of 2"x2" gauze
4 5/8" bandaids
2 1" bandaids
For another $6, I could/would have added hydrocortisone cream, generic Benadryl, generic immodium, antacid tablets, bug repellant, and individual eye drops.
I would have liked to find nitrile gloves, or even latex (I'm not allergic to it), and some generic moleskin, but vinyl is better than nothing, and duct tape can be pressed to make serve for blisters. Also as butterfly dressings, using those little scissors. And in a pinch, as a chest seal. They also didn't have single-edge razor blades, which are the shiznit for a host of uses. I can always get the gloves and razor blades at Horror Freight for not much more than a buck.
The entire thing would fit in small lunch sack, or a waist pouch.
Some of it is brand-name stuff, some of it is made-in-China, all of it is serviceable, easily replaced, and one helluva lot better than nothing whatsoever.
You can solve your own and others' minor medical emergencies, and keep others from happening.
It can also be further stripped down, taken out of original packaging (I highly recommend this anyways wherever possible), and put into Ziploc snack and sandwich baggies. For meds, go to a craft store like Michael's or Hobby Lobby, etc., or that aisle of a bigger WalMart, and get a pkg. of 100 crafter's zip bags, which come in sizes like tiny 2"x3" (for pills on blister cards, cut down to individual doses), or 3"x5" and 4"x6" for things like bandaids, gauze dressings, BZK wipes, etc. Now all your stuff is visible, waterproof, and separately accessible, with no bulky cardboard boxes to deal with. They're also good for keeping cards, papers, etc. dry and visible, and for keeping batteries from self-destructing inside things while stored, like they do.
WallyWorld also sells fairly heavy-duty zip pouches about 5"x 10" in camo and earth tones. You can fit your EDC/car/office drawer kit in one. Or, you can buy different colors, and sort supplies by purpose, i.e. red for bleeding, blue for airway items, orange for burns, green for prep/decon items, black for tools & equipment, or whatever. Then put the collection of pouches into a soft tackle box, and you've got a medic bag.
You can always upgrade the stuff later (and should). Baby steps.
Start with that kit, and keep it where you spend most of your time. Some small part should be on you just about always, or where you can get to it in a couple of minutes. You don't need to walk around wearing the Batman Belt 24/7 though. See how much you can get into one of those aluminum wallets (also $1), or into a waist cell phone pouch than won't look too goofy or "tacticool", while still getting the job done.
You can definitely go bigger, better, and more expensive.
But you'll have a tough time getting this much for this little.