I have purchased a few things with BTC in India, i use this app-based wallet called Zebpay, they allow me to purchase voucher codes for amazon and the like at a 5-10% discount. They also enable me to pay my mobile, internet and television subscription bills. In addition, i actively look for people who accept BTC as payment for goods and services and try and be an evangelist when they look at me with a confused expression! :)