oh golly what a great thread.
Just feeling stronger. And more graceful. And more flexible.
Being able to kneel down and tie my shoe without having to check first to make sure there is something nearby I can use to haul myself back up.
Being able to bend over to pick up something off the floor instead of having to squat or drop to one knee (again without having to check for support or call for help to get back up).
Being able to lower myself (semi

) gracefully into a chair instead of plopping with a whoosh or a grunt - and being able to get out of that chair without having to use my arms and shove against something.
Getting in and out of the car without hanging on the door.
Feeling core muscles - I had forgotten were under there - surprise me and flex when I do something simple like pick up the laundry basket or close the sliding door.
Feeling like I stride now instead of plodding.
And my personal number one favorite thing: When I suck in my stomach, it actually sucks in!