It’s quite cheap and easy to make DIY car mats. First, you’ll need the right material. You won’t want your mat to slip around on the driver’s side, which could be dangerous. The material should be rugged enough that it doesn’t soak up tons of mud, water, stain, get stinky, slippery, or pool water.
Home renovation supply stores often sell carpet offcuts or samples for just a couple of dollars. Consider:
If your carpet of choice doesn’t have a non-slip backing, you can use floor mats or clean car mats as a base. Alternatively, source a felt/rubber rug backing or a non-slip applique meant for floors or tubs.
Here’s how to DIY your car mats: