Reusable Potty Training Pads

[maisiemog]

Does anyone use washable pads for potty training 'accidents'? I am wondering whether it it worth buying these or just using a folded towel as I am doing now??
I have heard of piddle pads and buppy pads, but don't know much about them - anyone?

I put my waterproof changing mat in the car seat/pushchair to catch accidents - has a cotton top so absorbed the wee well. Have used pamper care mats aswell but don't like the waste bit of it really. also use the same changing mat as a waterproof sheet on the bed in case of accidents! Got mine from Lollipop - have 3!

I use to line car seat etc with plastic bag with a hand towel over the top.