More detectors - IR, 3 cameras

This post is more a proposal - lets vote for more detectors is better.
I strongly believe - the more detectors in our gadgets we have the more opportunities and unexpected benefits.

Take the IR light emitter, which use to be in cell phones. Since it's cheap, your phone with such component could be used not only as universal remote control,  but possibly as a  glucose detector (need emitter + detector), counterfeit money detection, simple night vision, infrared thermometer, gas and liquid testing...
http://www.edn.com/design/medical/4422840/Non-invasive-blood-glucose-monitoring-using-near-infrared-spectroscopy

3 cameras on computers is also do not add to much cost to laptops, but creates possibility for 3D screening, gesture recognition and better observation.

Looking for examples I found conformation that with multiple cameras it easy to create eye to eye video chat.
http://www.telepresenceoptions.com/2012/01/direct_eye_contact_video_confe/
However, I am sure it is much better to put them apart as far as possible to maximize the angle. The extra cameras do not have to be the same quality, they create support information for algorithms.

With 3 cameras the eye computer control will be cheap and will be used not only by disabled but to faster processing for every person. 

And again if we put more detectors it will open more than we expected. Take leap motion and MS kinect like cameras 

 http://www.ibtimes.com/artificial-eye-contact-skype-software-could-let-users-chat-just-real-life-1400937
https://wefunder.me/motionsavvy
http://www.kinecthacks.com/top-10-best-kinect-hacks/

bandage sitting place

For economy planes and long distance trains - new sitting form harness adjustable hanging system.

It could be too bold but there is a chance it could work.

1 At the airport or where there is time and more place passenger take on the pelvis  and chest harness. In the plane he magnetically attaches to main ropes and take on head support.
2 Head support is soft like dense pillow with two separate parts - enough to grab the head but not too much to hang the man. Harder at the back and gentle in front. The rope to the head is more like rubber string just to make some tension.
3 Each of the ropes is separately adjusted (like sitting  electronic car chair).
4 The full sitting place is not just ropes but lean wall support.

Car grass parking

Here are some thoughts about better supermarket green parking.
Principles - more trees, more grass, easy guide and faster drive.

1 Create the grass island which stays between wheels. It should work as better parking place guide than two lines between. Plus more green space and wider water drainage surface for trees. The surface under wheels and between cars  is ok to left paved - for better contact in winter and women heels.  
2 Plastic covered or green paved surface for front wheels  (it should be clear to driver that it's possible to drive in a bit) - like this

 3 Car parking distance flags - to ease for drivers to be more precise. They used for medium 4  and long 7 cars.
4 Cars stay for about 60 dergree. It is not as parking surface efficient as 90, but it is much easier to park = less movements, more precise parking, faster parking, better views
5 Small parking traffic light - just show if there are some parking lots available in the lane.  
6 one way direction  to avoid waiting time for opposite direction driving.

voice cancelling headset

Laud crowd open office can be more pleasant if we can reduce the level of voice noise. Except partitions the only option is voice cancelling. There are some headsets which create better experience with such an active system - microphone records the voice and the small speaker behind sends negative frequencies to eliminate external sound.  Acoustics engineering companies create sophisticated active 3d acoustics to reduce or enrich the sound vibrations in music halls.
The idea is to give phone operators some device with backward side active headset - where the voice will be cancelling outside the small perimeter:

   Besides there will be multiple microphones, which should mean better sound quality (stereo...).