If it's water use that has you doing color at CVS, try using distilled water and/or the Ilford washing method. I do it that way 'cause I have well water that's only slightly less hard than a rock. The wash method has 5, 10, and 20 inversions - each with fresh water. I do twice as many, just in case (and one roll of 120 uses a gallon of water if I make fresh fix as well as developer). All you need is a changing bag to get the film on the reel and in the can.
I lived in Waltham and then Franklin, MA and I miss the Cape a LOT.