We're in Boston also. A place in Watertown wanted 7.50 or so a square foot. I ended up ordering from place in North Reading - National Tile Distributer (Maria was very nice and helpful) actually just looked at receipt (ordered the end of January) and it was 5.50a square foot for the 3x12. Their prices were a couple of dollars cheaper. Also ordered the small ramp edge molding for 5.00 a piece. @pippiep thats looks pretty!

There really is no substitution for testing the colors in your space and different light through the day. For a suppposedly neutral color, greys can be tricky. Fact of the matetr is that a greyy can be any color plus black or some canceling tones. Revere Pewter goes violet on me and Edgecomb grey a bit green in some rooms. I wound up going to Sherwin Williams and trying their colors. Agreeable Grey was the right tone for my living areas, but I am doing them at 150% to get a little deeper color. I am using Anew Grey in my entry and stairwell -- that hasn't been done yet. . More important to your question about going with cool and warm colors -- the Agreeable Grey in my FR had to work with red brick, cherry hutch and dark wood floors as well as blue, green and white in the upoho;stery, rug and kitchen cabinets and counters. Anything that tended green made the red brick fireplace more intense and anything too warm made it pinker/orangier. Agreeable Grey at 100% was too light -- was too close to my grout and looked chalky, so we just added more color and went to 150%. SInce it is a light color to begin with, it is still light, just richer. The result was amazing -- my red brick calmed down. No more orangey, purpley/brown red. And it is so soft and neutral with the blues,, green and white. We did the ceiling at a reduced value. It was the first time I had used SW paints and as much as I liked BM, I was just as pleased with this job (DIY).

https://www.benjaminmoore.com/en-us/color-overview/find-your-color/color/240/delaware-putty?color=240&source=%2Fen-us%2Fcolor-overview%2Ffind-your-color%2Fcolor-families%2Fbro%2Fbrown https://www.benjaminmoore.com/en-us/color-overview/find-your-color/color/2143-40/camouflage?color=2143-40&source=%2Fen-us%2Fcolor-overview%2Ffind-your-color%2Fcolor-families%2Fgre%2Fgreen https://www.benjaminmoore.com/en-us/color-overview/find-your-color/color/2142-50/gray-mirage?color=2142-50&source=%2Fen-us%2Fcolor-overview%2Ffind-your-color%2Fcolor-families%2Fgre%2Fgreen

FWIW we had our whole house painted passive until a few years ago. It’s a nice grey. In our house it was on the cooler (but not blueish) side and we loved it. I also really like Zurich White which I guess is maybe more of an off white but that can look like a very very light grey/griege depending on the light. BM classic gray is another in that same area that might be worth a look.