Most contemporary canning jars now come with built-in seals, unlike their vintage counterparts. However, if you have some of those old seals around, try using them as non-slip rug seals!
I keep rugs in front of my sink area and right by the bathtub, and I'm not gonna lie and say I don't slip from time to time! Tip Nut suggests sewing vintage canning jar seals to the back of your throw rugs helps prevent slippage. This quick trick still allows them to be washed with ease, but will give you a little traction and peace of mind in the time being.