Have you ever been angry because  tomato ketchup wouldn't come out  bottle? Have you ever squeezed and squeezed  toothpaste tube but  last bit wouldn’t come out? Have you ever spent ages trying to scrape  last bits of jam from  sides of  jar? If the answer to these questions is 'yes,' you may be happy to know that  solution to your problems is coming. Scientists have invented  super-slippery surface that can be put on  inside of bottles, tubes, jars, tins and other containers.  slippery inside means anything will just slide out, like water. Every last drop of things like glue, paint and cosmetics will come out, leaving the container totally empty, and making you happier and richer.
Scientists from  Massachusetts Institute of Technology and  company LiquiGlide wanted to create something that would reduce waste and save us money. The technology's co-inventor, Dr David Smith, said every day, millions of litres of ketchup, sauces, paint, gels and creams get stuck to  sides of containers and are thrown away. He said: "The technology has  potential to significantly reduce waste and be  big part of the zero-waste economy." The LiquiGlide website says: "What the wheel was to transportation, LiquiGlide is to liquids - it changes the way liquids move….We want to revolutionize consumer packaging, reduce waste, and create efficiencies. We are motivated to save lives and improve  world."