Mine get thrown in the washing machine and washed with whatever liquid laundry detergent my wife is using at the time. No bleach, no fabric softeners.
From there, they go into the dryer with whatever clothes my wife is drying at the time. No softener sheets, regular heat, fully dried.
That process seems to work for me with the nearest thing to a problem being static electricity in the MF's once in a while when first removed from the dryer.
I have a few of the 6.5 sq. ft. Wal*mart MF's, several Meguiar's, Pak Shak, Premium Auto Care, Poorboy's, Excel, mostly terry, but a few WW.
Charles