It depends on your level of risk tolerance. If you are the kind of conservative in terms of dealing with your finances, then a combination of work that pays btc, faucet, signature campaign, and the like is your best route. However, if you are that kind of person who is a risk taker, then playing online dice games that earns btc is your way to go. The latter will either let you earn .5 btc or loss even more than that - your choice.