Needle, not for sewing cuts but for removing slivers. It doubles as a clothing or gear repair item (with dental floss, another dual use item, as thread). I've only ever had to use the needle once for sewing, but I use it for slivers nearly every trip. Question to self--why do I keep the needle with repair stuff instead of first aid?

Foam self-adhering wrap, called vet wrap and available in livestock supply stores, a good substitute for much heavier elastic bandage if you sprain your ankle. Of course can be used to keep bandage on dog legs. If used as substitute for elastic bandage, a few strips of duct tape on the outside make it stiffer. The downside is that under heat and pressure this stuff melts together, so you need to replace it every year or two. Ace bandage deteriorates, too.

Very small mirror (Coghlan's camping mirror cut to 1/4 original size)--in case I get something in my eye or a facial owie. Optional if not traveling solo.

Small amount of antibiotic ointment (the little one-dose packets)--my most common injury is the dreaded infected hangnail!

2 or 3 butterfly closures are both lighter and a lot safer than a suture kit. ER physicians (like my son-in-law) will scream at you if you suture or superglue cuts and will promptly open them up again.

I like those hydrogel pads, too!

A few ibuprofen or acetaminophen tablets are a good idea. I also bring a few benadryl capsules (in case I step in a wasp nest, common in the fall here) and a few anti-diarrhea tablets (to slow down the process so I can hike out without having to get behind a tree every hundred yards).

It's always a good idea to go through the kit every year and get rid of the expired meds, the bandaids whose wrappers have turned yellow with age, etc.