Use of sodexho coupons is a sheer waste of paper and adds a lot of manual work overhead (printing, distribution etc.,). Ideally, if Sodexho debit cards were issued, that get auto recharged as per eligibility, it would save a lot of time, effort and most importantly paper. Even department stores could identify only those articles/items that qualify as food products eligible against Sodexho when the card is swiped for payment.

How many times have we seen ugly marks on overhead screen projectors? A simple idea would be to place a (fixed) glass/plastic fibre sheet in front of the area of the screen. That way, when someone (unknowingly) tries to use a marker on the white screen, the damage is not done!!!

If a hollow cylinder is stronger than a solid cylinder, why cant hollow bolts/rivets be used to reduce the weight of products

An idea to reduce/eliminate headlight glare is to use a polaroid on the headlight cover and another polaroid with its axis perpendicular to the one on the headlight cover. This would reduce/eliminate the glare from headlights on the driver for oncoming vehicles. Not sure if this is an economical/viable solution.