Yes and no. I do make sure my FAK are well stocked and current, but I try to keep the numbers of FAK down. Otherwise it's too much to keep track of and too much to keep replace.

I have devide my FAK in to:
- lightweight FAK (for MTB'ing, climbing, hiking, etc)
- Medium FAK for the outdoors
(I think i will be turning them in to a lightweight one + a add on kit)

- Car FAK
- Large home FAK (which is also the one i bring with sport events)

My kits are different from the American style kits. I'm from Europe and trained using more basic medical supplies (I have had basic first aid and wilderness first aid training). Far less medication and heavy trauma things.