With the abundance of stores selling disaster/survival kits, I was surprised to find out they are all quite generic and offer the same kind of products without considering the geographical specifics. So, if you want to optimize your kit to your geographical, family, or other special needs, you will have to find and buy the missing items yourself, which takes a lot of time and effort.
An e-commerce store which offers emergency supply kits based on your location (to consider geographical specifics of the area you live in, e.g. maps, terrain nuances, etc.), family structure (do you have children, seniors, pets, etc.? e.g. something to occupy your kids with), and other personal circumstances (e.g. mobility or other health constraints). Also, automatic restocking reminders when items in the kits expire, so customers don’t have to be checking this themselves.