I play gambling and altcoin trade, 0.1/week profitable always does not include a signature or other giveaway.
if you want, many tutorials at forum bitcointalk Already neatly arranged page to page .
I do not encourage gambling whether it's the way you can earn more Bitcoins in a week. We all know that gambling is largely dependent on one's luck. Today we are lucky and win big money, but tomorrow you will be unlucky and lose, no one is sure anything in gambling. Currently, the price of Bitcoin is quite high makes earn 0.1 BTC in a week is even tougher, if have capital should invest in some type of potential altcoin but first of all it will require a bit of knowledge and skill. That's just my opinionif you want, many tutorials at forum bitcointalk Already neatly arranged page to page .
Potential Crypto-Currency is Bitcoin, you can try altcoins too, but the real safe profit is made by holding BTCs, for me it's better than any other altcoin. Gambling is very risky as you said, but it can worth with a big bankroll and wise bets. With a really huge bankroll you can place one bet daily 0.1 BTC, 50% chance of winning or a bit more... One win and you are done! Doing this for some time can be profitable, but after several months you can start having losses...