Fleece What absorbent layer do you use under your fleece?

[BlueZepher]

I'm going to try out fleece instead of my regular carefresh, and I was wondering what you suggest to put underneath the fleece? I was thinking old towels or maybe "wee wee pads" used for puppy training.
How often do you wash/change your absorbent layers and fleece?

 

[Starthecavy123]

I use uhaul pads.

 

[PiggleLove2013]

U-haul pads are the best. I wash the U-Haul as often as my fleece, and you're supposed to wash the fleece once a week (if more than two pigs, more frequently).