IMO, it depends on what level you work. I’m preparing to deal with one patient at a time. I may be stocked at home with additional supplies, but they aren’t in my kit. OTOH, some EMT’s may prepare for mass casualty scenarios and in that case you may need many times the amount I plan to have in my truck kit.

CoFlex is really useful, I probably have a lot more that I need — unless we have a large’ish EQ and things really go south. Then I might not have enough.

It depends...