8 hours is a 'crap' of a long time and you dont want to be in 'shit' literally.
As always, I am being too lazy to click or put up pics!!
I used to carry a small EDC in the lappie bag (leather shoulder bag from Dharavi). This consisted of a metal box which in an earlier avatar contained cashew nuts I bought on an Indigo Airlines flight. It says "Nut Case" on the box. Suits me perfectly, I'd say.
I recently shifted to a Swiss Military branded passport / travel wallet (this brand has nothing to do with Victorinox, Wenger, or the famous Swiss Army knives). The wallet is a bit like a ladies' purse, but being OG in colour and OD trim, it's OK with me. Anyway, it lies in the bag most of the time, and the carry factor will come into play only if I decide to go somewhere risky without the laptop bag, in which case, how the thing looks isn't going to be a prime concern.
The contents (I am not the owner or have any shares in the brands mentioned below, I just like the products
):
1. Boker subcom folder, orange handle scales, with orange shoelace as lanyard.
2. Small AAA Maglite, this isn't very bright due to the incandescent bulb (as opposed to LED), but I do carry a chargeable Nitecore Tube on my keychain. The Mag is more of a backup.
3. About 20 feet of duct tape, wrapped around an expired membership card of some store.
4. DIY waterproof matches (Home Lites brand matches dipped in clear nail polish), in a DIY water resistant duct tape envelope.
5. 6 Band Aid strips (I prefer the flexi to the waterproof).
6. 6 round Band Aids (quite hard to get, I purchased a box from Metro Cash & Carry).
7. Jute Twine (about 20 feet). I wear a paracord bracelet with about 10 feet of paracord. I am known for that funny OG bracelet and am really tired of being asked silly questions on Raksha Bandhan.
8. Medicines:
A. 2-4 each of:
i) Disprin (for general pain)
ii) Brufen (for greater pain)
iii) Allegra (for allergies, this, unlike Avil, doesn't make me sleepy)
iv) Crocin (or some other Paracetamol) (for fevers)
v) Lomofen (for the 8 hours of pain mentioned by Lanceman)
vi) Digene (to prevent the above)
vii) Avomine (stop the above, in reverse)
B. DIY Straws full of:
i) Wokadine (for wounds)
ii) Voveran Thermagel (for pain)
9. Whistle (a tiny plastic tube thingie my son bought to burst people's eardrums with, I hid it, mainly to maintain the integrity of my eardrums and my sanity, and then stuffed it into the kit when he forgot about its existence).
10. A few rubber bands and ranger bands
11. A razor blade (I normally use a DE razor)
12. 2 needles threaded with black and white thread, flicked from a hotel.
13. A stub of a pencil, with electrical tape, masking tape, and Micropore tape, wrapped around it. The pencil can write.
14. A few sheets of Post-Its.
Other EDC:
1. Nitecore Tube, mentioned above.
2. Paracord rakhi, mentioned above.
3. Fresnel lens in the wallet. This is mainly to avoid wearing bifocals and hence seeming "old", but I can light a cigarette with it.
4. Lighter/matches (the only benefit of being a smoker?)
5. Comtech Stinger punching device
6. Boker Tactical pen
7. The usual: cellphone, handkerchief, fountain pen, watch, ring, etc.
I have a similar bag as Kshitij, which resides in the boot when I go on long drives. As luck would have it, I revamped it last week. It can help a family of three survive for a couple of days survive away from civilisation. Basically based on a 72 hour BOB concept. We stuff a 6-pack of Maggi and some biscuits/chocolates/granola bars in it just before taking the trip. I am also exploring heat-sealing small pouches of rice and pulses/beans and masala/salt. Khichdi would be better than Maggi.
Will put up that list soon.