This penlight seems perfect for you, in the event of blackouts or just to have on hand. http://www.amazon.com/dp/B0015UC17E/ref=wl_it_dp_o_pC_nS_ttl?_encoding=UTF8&colid=3EFKQT8SS1K99&coliid=I3QM5ZOK2PKI1A&psc=1
Alternatively, there's Israeli tourniquet bandages for 10 each or so.
http://www.amazon.com/Ever-Ready-First-Aid-Compression/dp/B003DPVERM
And a third alternate would be some of these really nice gel pens.
Large gauze pads or bandages and cloth first aid tape. In my experience most injuries that are not a sprained or broken limb are going to be large scrapes or cuts.
If you are worried about more serous injury, some quick-clot and some larger bandages. I carry an "Israeli" bandage which is designed for gunshot wounds. Unlikely I will need it for that, but I am more likely to see an accident with a knife, axe, or saw.
As others have said, a couple Ace type bandages and a SAM splint.
For less serious stuff, some moleskin (for blisters), burn cream, cortizone cream, and some OTC meds:
I also have some prescription pain killers left over from a surgery (Tylenol with codeine) and some indomethacin ( anti-inflammation used to treat gout)
On top of that I always have at least a couple days of prescription meds.