Empty the canister or replace the bag in your vacuum prior to cleaning up the litter. A full canister or bag causes the vacuum to spread the litter instead of sucking it up.
Vacuuming over the area six to eight times to pick up all the litter pieces and dust. Use a handheld attachment to vacuum near baseboards and other permanent fixtures, if necessary.
Combine equal parts vinegar and water. Blot the vinegar solution onto the litter spot with a clean cloth if there is a urine odor. Let the mixture sit for 10 minutes.
Dip the cloth in clear water. Blot up the vinegar mixture thoroughly with the damp cloth, rewetting it as necessary.
Allow the spot to air dry. Vacuum a second time to restore the nap to the carpet.