I line my drawers and cabinets in my laundry room with it. Under my sinks, and in those drawers. It works great! Also my pantry shelves.
I'd stack a few somewhere just in case you get some damage and need to replace/patch any areas in the future. You likely won't need a lot, but you'll be glad to have it if the time comes.
If you have a storage room where you store extra can goods, etc. , you can put the extra vinyl on the shelves. Easy to keep clean and saves the paint and surface. You could also use it in your pot and pan cupboard if you have a big enough piece.
Hi! I do all the things mentioned. I like the flooring protecting under my sinks, since I've had stains and leaks in the past. I also save a few for repairs.
Under the sinks really works great, my mom even used the square vinyl tiles under the sinks. They will be great for any shelves and drawers. You could even use them as the top surface on trays. It is easy to clean!