I buy all my fleeces from Primark, the quality and price I find ranges from good to very good at the branch I go to. I have 17 fleeces and 12 thick large towels (also from Primark), but you do not need this many, just a spare set for when the dirty ones goes in the wash.
For the base I put down 5 layers of newspaper, then 2 layers of Towels, I put 3 layers of Towels where I know they Pee More frequently. I then use 4 doubled over fleeces across the base on top of the towels. I spot clean them daily and completly change all the bedding every 3-4 days. On occasions I may change an individual towel and fleece if I believe its to damp. Washing is continuous though!