I don't have a routine for it, but I sit at my desk a lot, so I use them in meetings and randomly as I watch something. I can't type with them on though. i have only been using them for about a week or two, and I feel the difference. Perhaps they will help you also.
There are probably many alternatives on Amazon.
https://www.gymstick.com/finger-expander-set-3pcs.html
Thank you for the info, I think it is something I need to check into, it really really sucks when you have to ask your wife to open something for you. Almost as bad as having to get help to put a coat on or take it off.
Yeah, I can imagine it can suck, especially long term. Good luck and let me know if it helps!
Added to my amazon cart so I don't lose/forget about them. it will be a month or so before I finish my order and get my stuff.