i scoop 2-3x a day. we're using the grocery store brand unscented scooping litter. it works as well as petsmart's house brand, but is $2.50 for 15lbs.
it's also finer grained like arm & hammer unscented scoop. i'm thinking of trying some of the nature's miracle litter soon, though. i'm going to see if our wal-mart carries it this weekend. i also heard on another board "Fresh Results" natural litter at wal-mart is made by Nature's Miracle (i.e. it's the same litter). the poster who wrote that stated she called the NM company and they told her that.