I keep a small needle-nose plyer (purchased at a craft store) in my kitchen. I use this for remove tops of cans having the pull tab, removing the inner seal of a milk carton. Also comes in handy to open food boxes with pull tabs. I would say I use this device at least once a day, many days more than that.
Swedish fork knives are wonderful. I have finger/wrist/ and shoulder problems RA/OA/ and Ehlers Danlos Syndrome-hypermobile joints(aka double jointedness).
Also like eating utensils with 1+ inch diameter handles, and the "food end" can bent to help keep the wrist straighter while eating.
I love the OXO utensils too.
A breadknife with the handle attached at a 90 degree angle - infinitely easier to use than the regular versions.
Thanks for all the great tips!