We love the Litter-Robot 4, the popular self-cleaning litter box, and there are currently multiple bundle options on sale.

Another option is the Yaheetech Decorative Litter Box Enclosure for £49.99 from B&Q. While it isn't automatic and doesn't offer the odour-trap feature, it serves as a decent low-tech solution.

“The app is focused on changing people’s behaviour so that they’re more likely to pick up litter when they’re out and about,” said Nicolaas Love, plastics co-ordinator for Georgian Bay ...

Although it's not automatic (meaning you'll still have to do most of the dirty work yourself) and doesn't come with the odour-trap feature, it's a decent low-tech solution. I put Whisker's Litter ...

The Alex Water Warriors found a unique way to clean the Jukskei River, by incorporating the use of litter traps, handwoven by members of the Kula Marolen Foundation, another Alex based organisation.