I have use the pill bottles for fire starters. I use the drier lint and make a small bag to put it in coated with vasoline. Then add a few matches as well to the bottle. Makes for great fire starters for a fire pit or whatever. Also I have made sewing kits with them. Very much like the ones you see in dollar stores and such. Altoids work very well for these as well. Have used them for mini first aid kits to carry in my pocket as hubby is on blood thinners and is always getting scratched. So have to keep bandaids and such on me all the time. He has one he keeps in his pocket as well when we are out.
There are so many uses for these. I am sure there are many more. Fishing is another one that comes to mind. Might have to make some of those up for grandson. He loves to go fishing.