There are three language complexity levels: level 1 (Elementary), level 2(Intermediate), and level 3(Advanced). Simplify the given text from Level 2 to 1 and let the number of sentences in the Target text be the same as the number of sentences or more than the sentences in the Source text. 

Source text: Has getting ketchup out the bottle made you angry? Have you ever squeezed the toothpaste tube hard to get the last bit out? Have you spent too long getting jam out of the jar? You may be happy to know there is an answer to these problems. Scientists have made a very slippery surface to put inside bottles, tubes, jars and tins, etc. Things like glue, paint and cosmetics will slide out of the container like water. The container will be empty and you will be richer.	

Target: ? Please reply with exactly 7 paragraphs and separate each paragraph with two new lines. The very first paragraph must start with the word "signs".
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