I use these. They're crazy expensive, but I save a little by buying them by the case lot. I have the sort of plumbing that necessitates a lot of my TP landing in the bathroom wastebasket anyway, so I just scoop the litter into there, tie it up, and pop it into the garbage can.

They also come in doggy cleanup size, which are smaller and so cost less per each.

Love, Columbine