One of my favorite mechanics is when you place tiles next to each other and the effectiveness of the tiles depends on what is next to them. Suburbia does this but almost goes too far in my opinion. It’s way too much to easily keep track of.
A game called Cité is my favorite for this because you share a border with your opponents and you can make deals out of it. “I’ll put my x2 multiplier on the border here if you give me one Cloth per turn.”
Same deal in my house. Better not to bring it up yet. You can use it to know who used the toilet last when something breaks.