Hi Dorothy, as long as you can get in and out of your SUV by sitting and swinging your legs in, that's fine. I was doing that for a while, but I realised after a bit that I was just getting in the normal way. And I was certainly standing on chairs to get stuff off high shelves. In fact, naughty, naughty, I've even done that since the second THR. The strength in the operated leg will return in time, I'm sure. My first one, done nearly 5 months ago, is just as strong as I need it to be. One tip for getting your leg strong - have the other hip done! Then you just have to rely on #1 as your strong leg, and you know what? It's as strong as you need it to be. You'll have about the same length of time between hips as I did, or maybe a month longer. Of course, as we never tire of telling one another here, every person and every hip is different, but speaking for myself that was quite long enough to allow the first leg to get back to normal.
It was fun to read about your dogs. What breed are they? We've never done any sort of agility training with Susie - chasing squirrels and digging out rabbits is more her line, and anyway she's getting a little bit old now, but I'd guess she would have been good at agility if we'd ever bothered to train her. She also is/was very fast, though fortunately never fast enough to catch a brown hare (I'd hate that, they're so beautiful). She was called Lucy when we rescued her, but my stepdaughter is Lucy and we thought we couldn't have two Lucys in the family, so we tried all sorts of names on her and she appeared to answer to Susie, so that's what she became.