Remember reading somewhere that the only fly you need, is an Adams in different sizes, I think it was in one of mr Gierach's great books. Anyway, once in a while it's nice to just forget to always try to match the hatch. Instead just grab one of your rods from the rack, a box of classic's and hit the stream.
Once at the stream just enjoy the surroundings, have a sip of coffee while you are rigging your bamboo rod. And take one of the classics from the "Catskill box" like the famous Adams pattern and just have another great relaxing day at the stream.