+1
I picked up a small first aid kit at Wal-mart for a few bucks located in the camping/hiking supplies. I also added some of those small alcohol wipes used by diabetics to wipe the skin just before injecting insulin. They're good not only for cleaning the skin there also great for cleaning a tube just before you apply glue and patch. Professionals should look at injuries larger than what a small first aid kit could handle. I carry an old Cell phone that’s good for calling 911 and don’t pay for service for it so all it's good for is calling 911. You can normally purchase them in thrift stores for $1. This allows you to simply hand that old cell phone to the injured person and keep going if there scared to talk to you or refuse help for the same reason. I've given several of them away over the past several years. I always leave my address on the phone and have had a couple of them mailed back with thank you letters.