My last house was massively convenient, a 15 minute walk to a very large town which had everything there, a 20 minute walk to a very lovely local high street, 5 minutes to our train station, which took us up into London in half an hour, we were very close to a beautiful Royal park and Hampton Court. The children's senior school was a five minute walk away, how spoilt they were! However, it was and is a very expensive area and in selling we were able to release some capital.
We moved 3 years ago some 30 miles outside the M25. Now I do have to drive to get into our nearby market town but it's only a 5 minute drive away and several of the main supermarkets are there, Waitrose, Sainsburys, Marks with an Aldi under construction. Plus lots of shops including John Lewis, M&S many restaurants and an Everyman Cinema, theatre and a train station, it's an hour up to London now. Locally, a walk away, there is a Co-op, our doctor's practice, Boots mainly for prescriptions, a charity shop, a hairdresser, card shop, Indian restaurant, a very popular coffee shop with an outdoor area, loved by dog walkers, an estate agents, a lovely smaller local library, larger one in town, I use both. A very nice cricket club open to locals for a minimal fee to enjoy sitting on the terrace for a drink in the good weather. Plus a super country park with a coffee shop looking on to a lake which has various water sports, such as kayaking in the summer.
We moved to get out of London essentially it's far less heaving where we are now, beautiful countryside on our doorstep, the coast is a mere 15 minutes away and we have a good sized garden. Our last home was a town house on 3 floors, another reason to move all the stairs! we had a small courtyard garden opening on a couple of acres of communal gardens which led down to the Thames, where quite a few of the residents had a boat moored, not us though! Ours wasn't so much a down size, more of a side move, with more square footage than before, that wasn't intentional we'd been planning to move out for quite a few years and had been scouting various areas, but the timing was never quite right. It was kind of serendipitous in finding a house we really liked and simultaneously selling our house in a week, when the market peaked. The kids kind of kept us tethered there, even though they'd left home they're still prone to moan about missing their home town, although they like coming down to us here too.