I buy things like adpacks in revenue share sites,advertising material like paid to click ads,paid to singup offer,traffic exhange and other things with which I can advertise some site which have referral option.Also I invest my bitcoin in hyip sites,I buy positions in matrix-cycler sites where I dont need to get referrals to earn a money,that is one kind of matrix site with concept created month ago.Also I buy tickets in sportbetting sites and I play poker with bitcoin and I gamble on a dice sites with bitcoin.Also I buy other cryptocurrencies with bitcoin and I trade with them like a pro and I make a nice profit.I dont use bitocoin in real life to buy something because in world bitcoin isnt enought popular so small amount of shops are using them so I cant spend my bitcoins in real life now.Right now I only advertise,trade,invest and gamble with bitcoin.