Originally posted by David_NYC I use the following four items as a "toolkit" to open packages or products. I've used the first three items for thirty years without injury, and added the JarKey about 10 years ago.
1. Wiss compound action aviation snips. They are produced today by Cooper Industries and sold under the Wiss Metalmaster brand. These are essential for opening blister packs and clamshells. Cooper thankfully has kept the price down on these, and you can get one for about $20.
2. Stanley "Classic 99" retractible utility knife AKA box cutter. Stanley makes a variety of retractible utility knives today. Useful for cutting plastic film.
3. A Wing Corkscrew wine bottle opener. I still use this to open jars under vacuum if the JarKey (below) does not fit. I bring the wings all the way up to the top next to the handle on the corkscrew, then ram the corkscrew into the metal lid of the jar. It releases the vacuum and allows unscrewing the cap.
4. Brix Design's JarKey. This device lifts an edge of a lid on a jar under vacuum, making it easy to remove the lid after breaking the vacuum. Brix Designs makes a variety of gadgets to open "impossible to open products":
http://www.brixdesign.dk/international/brix.htm As for as medications in blister packs, I'd buy them in a pharmacy and ask the pharmacist to transfer the contents to a bottle without a childproof cap.