I've either recycled 50 ct ibuprofren/acetaminophen bottles, old film containers, or old carmex lip balm containers. When I ain't feeling good (like now), I can go through the meds pretty quickly. I do mix&match in the bigger containers I tote, but I haven't ever forgot what pill was what.

The only script I carry on a regular basis is my hayfever pills (in this case Allegra-Ds). I get a supply of them in one or two dose blister packs from my doc when I go in every year to renew the script. They are handy to keep around. I also carry my immodium and my pepto pills in blister packs that are split like that, and anything else I can find packaged like that. Since my edc is a shoulder bag, my first aid is a little more flexible than most.