Free Idea # 329 - Camping plates with layers of biodegradable film

Design camping plates with layers of biodegradable film that can be peeled off to reveal a clean surface each time.

Free Idea # 328 - Plant pots which alert when water needed

Place probes in plant pots which alert when the plant needs water.

Free Idea # 327 - Miniature smart phone

Develop a miniature smart phone which projects it's 'screen' onto any plain surface. Users would touch the projected screen rather than the phone.

Free Idea # 326 - Allow SIM card in public payphones

Allow cellphone users who are out of battery to insert their SIM card in public payphones to call their contacts.

Free Idea # 325 - Cell phone signal booster

Create a cell phone signal booster for basements, apartment buildings and office buildings. Wireless hubs on each floor would connect users to a stronger signal outside the building.

Free Idea # 324 - Programmable kettle

Manufacture a kettle that can be programmed to switch off when the water reaches a particular temperature, not just boiling point.

Free Idea # 323 - Themed Karaoke Resort

Establish a Karaoke Resort Island offering vacations for every budget. Big money, singer-themed bedrooms (e.g. Madonna Suite, Elvis Penthouse) would include costumes and instant access to millions of songs in hundreds of languages. Middle budget rooms would have fewer frills. Hostel dorms would involve lots of people sleeping on the floor and sharing a mic.

Free Idea # 322 - Breakfast cart business

Start a breakfast cart business based on the hotdog stand business model. Place carts in high pedestrian traffic areas to provide commuters with quick, hot breakfast sandwiches to go.

Free Idea # 321 - Sunscreen applicator for sunbathers

Create a sunscreen applicator for sunbathers who have no one to apply sunscreen to their backs. The device would have a long handled tube containing sunscreen with a release button on the handle. A sponge-like applicator would be on the end to rub on the hard-to-reach areas of the back. 

Free Idea # 320 - Eco-friendly car powered by fingernails

Invent an eco-friendly car powered by fingernails instead of fossil fuels. The vehicle would contain a keratin combustion engine capable of harnessing the methane and hydrogen found in hair, nails, claws, horns, feathers, and the dead outer layers of skin cells.

Free Idea # 319 - Alcohol Purchase ID

Introduce a special Alcohol Purchase ID that would be have to be used by any adult wanting to purchase booze in a shop, restaurant, club or bar. The APID could be temporarily invalidated by police for alcohol-related misdemeanors, by accident/emergency rooms for alcohol-related injuries, or voluntarily by alcoholics wanting extra help to kick the habit.

Free Idea # 318 - Barcode car license plates

Make car license plates that are just big bar codes, then give traffic cops powerful long-range 'bar code reader guns' so they can shoot license plates as they drive around and find stolen cars, bad guys with outstanding arrest warrants, etc.

Free Idea # 317 - Interactive travel website

Launch an travel website where users input two destinations and their preferred time of arrival and departure. The site would then scan a database of bus, train and air timetables to show the most suitable journey. If no public transport options are available, the site would calculate the estimated cost of cabs or other private hire vehicles. 

Free Idea # 316 - Environmentally friendly Bike Limos

Introduce a fleet of Environmentally friendly Bike Limos to take people around cities at night. The limos would seat around eight people. The bikes would be an easy way to transport groups people to bars across town.  Environmentally friendly Bike Limos can reduce carbon emissions,

Free Idea # 315 - Power sockets at public place

Introduce power sockets on sidewalks, bus stations, parks where the public can access them. Users would buy a membership card which would allow them to recharge electric vehicles and power vacuum cleaners and electric tools at street level.

Free Idea # 314 - In-built tracking system at car components

Install, as standard, a resilient in-built tracking system in the engine, body, wheels, and other key components of every car, such that a cell phone or computer could track individual parts of the vehicle separately. This would allow the police, or an organization specifically created to track down stolen cars, to find them even after they have been abandoned, dismantled, torched, or crushed.

Free Idea # 314 - Tree limbs power generator

Manufacture cheap, tiny accelerometer-like devices to be places on the tips of tree limbs. As the wind blows the branch back and forth, the device's load would rock, generating power.

Free Idea # 313 - Location of movie

Embed code into movies which would relay the location of every scene on a map to mobile devices.

Free Idea # 312 - Collision warning system for cars and trucks

Create a collision warning system for cars and trucks. The sensor would measure its speed relative to objects in front of it and alert the driver of a possible crash. The sensor would even send an audible alert through in-car audio speakers and/or to the driver's cell phone (if one or both were being used).

Free Idea # 311 - GPS system for shopping cart

Add a small onboard computer and GPS system to shopping cart handles. The system would allow shoppers to select key items they wish to purchase and would then offer journey options, e.g. 'quick shop' - which would provide the fastest/shortest route around the store to purchase the required items, and 'calorie burn' - which would provide a deliberately circuitous route around the store. The LCD display would show key data: distance traveled in store, time taken, average speed, estimated calories burned, etc.