Hmm. The dog seems to be the limiting factor DerekY because otherwise you could go anywhere by coach. Many people who are less mobile seem to enjoy this as you get looked after and if you choose a tour you are taken to all kinds of beautiful places. Or you get taken by coach to a place like Llandudno where you can go on short trips or just chill out at your own pace. They look like good value to me.
Also - maybe time to start travelling light and not taking loads of bags. I still find that I usually take more clothes than i really need but for a short break I get everything into a small suitcase with wheels.