The design of standard first aid kits usually does not address how they function in real life where they are often used by someone who has no medical training.
I have looked at first aid kits for the domestic environment. Burns, minor scratches and deep cuts to the hands are the main injuries in the kitchen, which often occur while cooking.
My first aid kit is divided by injuries and every injury is described in steps, guiding the casualty through the treatment process. Furthermore, the kit has been specially designed to be used with one hand so an injury to other hand can be treated efficiently, even if the accident occurred while you were alone.