Bee,
I like your concept of using items from your kit as needed. I think a lot of times kits are "packed and held" until the time of an emergency. When that time arrives and the kit is opened the user finds that he/she is not as familiar with the various items as they should be. I think using items from the kit as needed will help keep us in practice, as well as let us evaluate the various components of our kits. We just have to remember to replace any items used.