Makeshift car mats
Built-in-carpets are not standard for all cars, and if you go to buy the carpets in the store, you will find out that they can be pretty expensive, and the cheap ones are thin as paper. Luckily, you can get good car carpets quickly and cheaply.
At Home Depot, you can get leftover carpet pieces for $2. Keep in mind that It’s not advised to place them on the driver’s side. Do so only if you can firmly attach them to the floor.