Dog Pond - Place a plastic kiddie pool in the ground. It'd be easy to clean and looks nicer than having it above ground. Big dogs can't chew it up or drag it around. This is obviously more fancy than a plastic kiddie pool underground, good idea thou
Keep litter box area clean with rubber garage tiles from a home improvement store & placing them under the litter box. Litter gets trapped in holes & not tracked all over the house. Works better than litter-trapping mats sold in pet stores.