Do you think that one day the items you used will be sold for hundreds of thousands, even millions of dollars? Possibly, if you are famous as the great physicist Albert Eistein.
Thomas Venning, a former Einstein auctioneer, said: "Not only is the greatest scientist in history, Einstein is also a symbol of knowledge, intelligence and passion. Interesting to own a piece of this genius.
Here are some of Einstein's assets that have been auctioned for huge amounts of money.
According to Express.co.uk, in 2016, a Swiss watch over 116 years old used by physicist Einstein Christie's auction house opened in London.
The watch has a silver layer, on the face there is a large round of minutes, a small circle of seconds written in Arabic numerals.
This is one of Einstein's three famous watches. He owned it in the 1900s when he was 21 and graduated from the ETH Zurich School of Physics and Mathematics in Switzerland.
Since then, Einstein used this watch when working and kept very careful.
The watch sells for £ 266,500 ($ 361,477), roughly 13 times the original estimate.
Express.co.uk says the Nobel Prize-winning physicist's leather jacket was auctioned off in 2016 and raised £ 110,500 more than originally estimated at £ 60,000.
This leather jacket was once a joke made by the costumes of the Canadas, produced by the fashion company Levi Strauss & Co.
It is said that Einstein used to wear this shirt for about four years in Europe before he was brought to the United States to avoid a Jewish massacre of the Hitler government.
At the auction, participants said they could sense the smell of regular Einstein cigarettes still lingering in each fiber even though it lasted several decades.
Finally, this jacket was bought by Levi Strauss & Co. as a souvenir and served for other purposes such as display and advertising
Also in 2016, Einstein's childhood toy box was sold for £ 62,500, eight times the expected price (£ 8,000).
Toy Box by F. Ad. Richter & Cie in Rudolstadt, Germany. The toy set consists of 160 pieces with red, lime and gray tiles and many different shapes and sizes.
Notes on "happiness theory"
According to CNBC, in an Israeli auction in 2017, two lines of Einstein's notes on "happiness theory" were sold for $ 1.3 million - unbelievable numbers!
In 1922 - one year after receiving the Nobel Prize in Physics, Einstein came to Japan to lecture and stay at the Imperial Hotel in Tokyo.
Then there was a messenger who delivered the message to Einstein, but he did not have the tip. He decided to write a note in German on two of his gift certificates with good wishes. Two later notes would be worth several times the usual tip amount.
On the first paper, Einstein wrote, "A life of peace and humility will be more joyful and happier than the pursuit of success." And in the second, Einstein wrote: "No will, everything will be the way."
Indeed, after two notes about "happiness theory" is up to $ 1.3 million.
Handwriting on relativity
Most recently, in March 2018, a handwritten Einstein letter was auctioned in Israeli, earning more than $ 100,000.
According to AFP, the handwritten letter written by Einstein in 1928 from Berlin to a mathematician, the text is a sketch of his ideas on relativity.
The letter was valued at $ 103,700 by the unnamed highest bidder.
Also in this auction, the auction house Winner's opened many sales letters, images related to Einstein in 1921 for thousands of dollars