Take standard food storage containers. Many of us have leftovers and with trying to save money and cost of food going up, when you make food and have it left over, sometimes it ends up in a part of the refrigerator that does not always get seen and you end up finding the items well after you could have eaten them and end up throwing them out.

With an led system that could be fastened magnetically so it is not necessarily part of the lid or the container, when you put it in the fridge and set the led reminder, it lights up when you open the refrigerator to remind you of the really good left over food.

We have all stood in front of the refrigerator with the door open thinking, I am hungry, I just don\'t know what for. Plus we can build in a timer so that let\'s say two days after you have put it in the refrigerator, it flashes yellow to warn you to eat it or it will be going bad. Then at 3 days (I am a bachelor, so I would set it at...7-10 days LOL) or whatever, it flashes red to remind you to not eat it and to throw it out so it would prevent illness.

We could also do something like this. Since the idea is not tied directly to the container itself, the led smart sensor could detect gases that are indicators of the food going bad and by doing this, also prevent illness. Not sure it would be able to be used on certain foods...does bleu cheese ever really go bad? However, I am certain you get the general idea.