Screenshot from Apartment Therapy article. The 30 Day Cleaning Schedule ~ Supposedly each task should take you 20 mins (or maybe you're only supposed to dedicate 20 mins to each task each day for 30 days).
I propose built in benches with litter boxes inside. OR cat doors in the wall with a giant litter box area on the other side. All litter boxes should be disguised 😎🐱 10 Ideas for Disguising or Hiding a Litter Box Apartment Therapy's Home Remedies