I have a bunch of pads from
www.piddlepads.com .... I've had them for almost a year now and they still look good as new! No stains, rips, odor, nothing!
If we had a bad day (we had a runny poo problem a couple weeks ago) I'll soak them first, but usually I rinse them out in the utility sink and then throw them in the wash with Arm & Hammer powdered laundry detergent.