hmm.. I have.. 6!
1 for wet, 1 for folding, 1 for ironing.

Then...
as I'm folding, I fold it into baskets for each room..
1 for girls (they all share).. 1 for us.. and 1 for linen.

how bad is that!

but I find it to be the most effective way for me to transport then never ending pile around.