This is a good thread. There is a tool for opening those can top rings. I think it is sold by Starcrest or one of those companies who send you all those slips in the mail. I haven't seen it lately, but have considered buying it. It looks like one end of a boat anchor (but not so large, LOL).
Don't forget about your scissors. My "food" scissors is in the drawer with tableware, so is always available for foil bags, packets, string cheese, and lots of other stuff.
We write the name of the medicine on the non-child-proof cap and save them to go on the next bottle. Both caps fit the same bottles. It is easier to read what's inside. Their printing on the label is so small.