When people drive past our house, it is probably obvious that we are cat owners. Not because our cats are outside - because they are strictly indoor cats - but because kitty litter buckets are a fixture around our yard.
Prior to the construction of my planting beds, I had 12 kitty litter buckets that were drilled in the bottom for drainage that I used for my vegetables. Tomatoes, peppers, even a batch of chives - all planted in white buckets and lined up in the back yard.
This year I decided to use the buckets for the peas, and set them up on blocks along the picket fence - giving the peas something to climb on, and preventing some of the critters (bunnies) from nibbling tender leaves and pods.
The rest of these buckets get used for weeding, tool buckets for gardening tools and in Hubby's workshop, and to seal up the bags of birdseed in the garage so that Chippy does not gorge himself too much on it. I had to retire a few when the plastic handle cracked on them, but there are always plenty more in the queue, as their load of cat litter cycles through the box, and the empty ones are cleaned and put to use elsewhere.
They do sell kitty litter in cardboard boxes -but what fun is that?