First aid kits can be quite personal for sure. One thing you could do is compare your kit to a commercial version of a similar size.

Experts are now saying that the extractor used on snake bite causes more harm than good. It does not remove much of the venom and can possibly harm the tissue. I think it was published in the 2004 "Annals of Emergency Medicine"; I saw it in Dr Weiss' book.

You will find some folks are allergic to the triple antibiotic. I am, so I may be biased. I had a reaction, thought it was some weird infection and saw a doctor. She said to quit putting whatever I had been on the wound because it was an allergic reaction. The doctor said to clean the wound with soap and water and "leave it alone".