My method, for consideration:

Every winter, I not only flip my wheel around to use the bigger cog, but swap to a smaller chainring. By losing 3 teeth in front and gaining 3 teeth in rear, I'm able to use the same chain throughout the year without changing the axle position. It works for me, but I could understand that being too much futzing for some people. You could also get dedicated summer and winter chains that are allowed to be different lengths.