Be sure to wipe your dirty feet on the 'mat' [='doormat'] before you enter the house.
She'll 'go to the mat for' you. [=she will do everything she can to help you]
The family 'rolled out the welcome mat' for the new exchange student.
(..) Storage surcharge. Additional overcharge. -Finder's fee. -Finder's fee? It was on the lot. Yeah, that's right. -And floor mats, keys. -Keys? How are you gonna start it? Excuse me. I believe you just ate my Twix bar. It was dangling and when you (..)1998 TvShow: Seinfeld Title: The Dealership Season: 9 Episode 11