From time to time, as it occurs to me, I'm going to put in breweries who do a great job on session beers. The first, an obvious one for me, is The Wharf Rat, in Baltimore. They regularly have 15+ of their own beers on, and many are under 5%, including their signature Best Bitter and SW1 ales. Very English, but not afraid to branch out, these are beers for sitting out on the sidewalk all afternoon with, as I have on a couple very happy occasions. The British ale yeast used makes for great flavor in a lower alcohol beer, and the cask ale is dead-on delish. Plan a trip, have a session. These guys get it.