Although brewery visits was covered in the initial linked article, revisiting Team D-Rocks’ beerneuring locations is a good start: Atlas, Right Proper, Blue Jacket, Mad Fox, (Caboose), Old Ox, Cap City..
Mosaic in Merrifield is a super easy place to get to via bike where you can eat a lovely dinner and see a movie.
Lazy Sundae in Falls Church is a good after-dinner ice cream stop on the W&OD. You could even visit for pancakes!
GB knows the western coffee locations, but going east, Café Kindred in Falls Church is very nice.