REALLY good thread idea.
yeah, I change things periodically with all of them. Back with Prissy -- my original 'heart' dog that I hauled off the street as a 6-month old throw-away (who had already had a litter) -- had acute pancreatitis along the way but lived to be nearly 21 -- I changed things many times.
When she was about 8-9 we moved to Florida -- her vision had started to get cloudy and ... well, I was never sure if her hearing was as bad as she wanted me to think, or if she just put me on 'ignore' half the time -- but she was aging.
I began to 'call her' in from the outside by flicking the porch light, I noticed she really wasn't as active, but probably wanted to go 'with' me more. Generally I let her set the tone -- encouraged her to play and walk, but I also let her find work-arounds for herself.
In particular, I was a new teacher and working incredibly long hours. Pris had a TOUGH time just elminating on walks -- arthritis has always been a problem for me and long walks were never an option. So I'd play inside with her (just take bits of cereal and toss them across the floor to chase rather than long walks in the hot outside Florida heat). If she had to elminate while I was gone, she taught herself to jump in the bathtub and go -- it was simple to clean up and no harm done. She didn't have to wait too long and I felt better knowing she didn't have to.
Later came the day when I would pick her up and put her on the bed to sleep rather than encouraging her to jump -- it was just too hard and she was reluctant.
With Foxy, that day came FAR earlier for him -- he stopped jumping on/off the bed when he was about 12-13 -- and I gave him pillows to use as steps off the bed. He developed sciatica around 14-15 and I began massaging him with the White Flower Oil -- for pet therapy we didn't encourage him to walk long distances but rather gave him the wagon to ride in when he tired.
A wagon can be an AWESOME tool -- get one while they are still pretty able-bodied and drag it with you on a walk. As soon as you can determine there is ANY pain at all -- have the dog get in and just pull them. You have to teach them to lie down in it (it can be fun) and we often took it when we went anywhere as a good alternative to lying on cold or wet ground. It hauled our 'stuff' but made sure the dog didn't 'over-do'. As they age it's a more and more welcome alternative.
I guess my point is -- if there is somet *thing* that used to be a lot of fun, but now is over-taxing, figure out some way to still *do* it but easier. Maybe the back yard was THE best place, but there are 7-8 steps to get down there -- do you need a ramp? Is it tough in the winter? How about the bedroom -- do you need a ramp to the bed or up to the sofa (if that's allowed?).
For me it's always been figuring out what THIS **particular** dog defines as THE BEST, and the figuring out how to make it still do-able.
Muffin the Intrepid LOVED his wagon so much. He didn't 'ride' much -- but for pet therapy it saved manhandling him to get him 'up' high enough for kids in wheelchairs. So we just plain left him IN it -- even when he got sick it made GKTW still *doable* but easier.
Now Kee has always been WAY too short -- she'd have to be picked up to greet every single kid -- so for her the wagon is a necessity all the time. BUT, as she's aged it completely avoids man-handling her and she just rests longer rather than getting up and down . But she's accessible.
But we also use it any time we're going somewhere that's quite a walk -- Kee's old and SLOW, and the wagon just plain makes it EASY. She can go, but doesn't lag behind. She walks as much as is comfy for her.
She's light so rather than do ramps we pick her up -- but she never was one to EVER get on the bed (just not part of her 'thing' -- she doesn't like being on the furniture -- probably something she was over-disciplined for in her past life *sigh*).
Food -- that's always according to my vets suggestions. But with Foxy I began to use an elevated bowl when the sciatica got bad -- not a bloat candidate, but his neck would stiffen and it would actually pain him to eat from the floor. Now Kee's had some neck issues the last year and HER bowl is slightly elevated -- I don't buy anything - I simply invent something to put the bowl at the perfect height for this particular dog.
But watching things like bowl height (for water and food) and how EZ it is for them to get up and down from furniture are big deals.
Also -- since you're in a more northern climate you might want to evaluate where she lies -- if there is a draft, how cool/hot it is, sunny or not? I changed Kee's bed for that very reason -- and Foxy started sleeping on the floor of his own choice because it was too hard to get down if he needed to.