10-Minute Mosaic Gem Coasters: The N-Plus-One Rule That Stops the Sliver Tile
I want to tell you about the coaster that taught me to count. I had a four-inch cork-backed blank, a bag of glass mosaic tiles in about nine colours, and a free evening. I started laying tiles in the top left corner, worked across, worked down, and it all went well right up until the…
