If you have a canister vacuum cleaner you know what a mess it can be to empty it. The dust flies and falls out all over the place so much so, you almost have to start cleaning all over again! Place some newspaper down on the floor and spray with water. Then place your vacuum cleaner on top of it before removing the canister. The wet newspaper will catch all the flying and floating debris so that you can roll this paper up and toss in the trash.