Dakota, I am taking possession of a 1 year old home in 2 weeks and have been exploring all the options for finishing the garage floor. After seeing how spectacular yours and a few others have turned out, I am sold on porcelain tile, but am wondering if I need an uncoupling mat under the tile. I live in Calgary, Alberta where the ground does go through freeze/thaw cycles. The concrete has 1 crack in it, less than 1/8" wide (I am assuming from the house settling) and the concrete has never been driven on or used. I will be parking in there year round and working on my car and motorcycles.
Shawn