Inventions you wish existed or think someone should make - drop your ideas here!

Pearl Sutton wrote:A poop Roomba!! What a cool idea!! I bet a classier looking version would sell to suburbanites to vacuum up dead leaves so they don't have to rake....

This idea is gonna bug my head... Edit to add: something like the portable solar fencing used for animals, that tells the poop/leaf roomba what it's parameters are. And the leaf one wants a mulching head, so it can carry more leaves in it's tank.

Can I get one that knows the difference between leaves and excrement? That shreds and "bales" the leaves, and stacks them together for me to pick up? And spends it's downtime making it's own payments by picking up walnuts?

* "Bales' is in quotes because I don't care if they're tied up. Just tight packed lumps sized between a brick and a sack of flour, that I can move without needing a rake. Easy to stack, (Seperated to dry, then restacked for storage.) easy to fluff out for mulching, easy to burn as a briquette after drying.

On the outside of your car, securely fasten a dime dispenser that operates hourly, and communicates via a blinking light. This device is to make peace amongst the owner of a vehicle and random urban beg-ers. When the small light is on, a dime is ready for the taking. When the light is off, a dime is not currently available. When a dime is taken, the device's one hour timer is started and a new dime appears when the timer runs out. Devices hold more than thirty dimes at a time. Beg-ers will learn the device's light communication in time. Vehicle owners can place devices opposite the gas cap. Devices will be secure, inexpensive, and not hold enough money to be a theft threat. A beg-er can get exercise and enough money for a meal or phone call. Instead of beg-ers standing in harm's way (like between two lanes of traffic, or the blistering sun), they can methodically take what they need as they need it.

You are the fruit tree and this is an urban forest?