I added a rubber sole at the bottom of my slipper.
Try it and you'll love it.
Just for your info : I use plastic canvas with 0.7 mm square.
I think my head is full of crocheting these days... My hubby said to me.. becareful.. I'm affraid that this world is all crocheting in your eyes). Oh,no.... lol
Have a splendid day !
Another project with plastic canvas. This time I make a basket for my left over thread or beaded. I also put an unused CD at the bottom. Easy to make but very useful.