It was my little dream to own 21 BTC and today i achieved it after hard work of so long time.Now i want to make my hard work pay me.I mean,i want that these bitcoins work for me someway and grow.Is there bitcoin bank that pays interest? What will you do with 21 BTC? How will you spend it? How will you grow it? Share anything you want that may help me to decide what should i do. 
since 21 btc is already a big amount of bitcoin. and I think we should start with your btc in practical life buisiness instead of virtual buisines . like to make a big shop mol .