There’s no easy way to do this. I only have about 15 feet by 3 inches wide 1 by 2 tiles, so I sat down in a lawn chair and did half of it manually last night. It took about 3 hours to do about 8 feet of tile, but it does look great.
I cut a wooden shim down to the point where it was just under 1/16 inches wide, then cut it to be about 1 inch at the tip. Mixed the grout in a small tray and used a small putty knife to hold the grout close to the work area. Grabbed a little grout, stuffed it into the gaps with the narrow edge of the shim and moved on to the next line. Clean up after was the bigger problem do to the very uneven surface of the tiles. A few washings with a sponge did most of it, but the final cleaning about 3 hours after I was done was also done with a pointed kitchen knife to make sure none of the corners of the tiles were covered in grout.
Sure hope I got a few brownie points for all that work! But I do repeat my previous question:
Does anyone know how to put a parental block on HGTV