We all have refrigerators. The trouble is that the basic design hasn’t changed in about 100 years. Most of the fridges that I’ve had were pretty similar. They hide away food so that it doesn’t go bad. There isn’t much more to say about this, except that it’s possible to improve upon this. That’s why I think that Celsius is a really good idea. Celsius and other fridges with glass doors enable you to see exactly what you have in your fridge to make sure that food doesn’t go to waste.