You got a lot of expensive stuffs? Mostly have got and they use it very less. There are many such rental portals like just4rent which we will talk about later.
Why keep it at home earn by renting it, yes you can do it. I am going to explain some ways to do it here and how.
First of all find items you don't use but some might use it e.g. Computer, Gaming Consoles, Clothes, jewelry, etc.
Computers, why would anyone need them on rent??? There are many competitions in different colleges going around every year, they need computers in outdoor setup to attract people and they conduct such competitions where they need Desktop than laptop like gaming competitions. So move around and ask college students you would find 5-6 in a year for sure.
Gaming Consoles like computers they are also needed in competitions, this is becoming a trend now. Get your clan over their win competitions and earn some. They require a lots of consoles and they usually rent and this type of competitions are held many times at many places and colleges and schools conducting such don't have consoles, off you go.
Clothes and jewelry are mostly rented if they are expensive and some needs for short period like weddings and Social functions, people can get 8K suit for 500rs for one day why would one buy new??? This is really good business and more profitable and you will find customers also very easily.
In this way you can rent tables, chairs, Music System easily and earn money probably around 100K Rs extra in a year.
Now how you do it???
Logon to Rental service websites like just4rent.in and post a free-ad like Olx, quickr and then get customers easily.
Others can earn by selling, you can earn by renting!!!