"Not spending $'s" isn't the right metric to focus on. Time is the correct metric (since you spend your time in return for the precious Dollars you're not willing to spend on Bitcoin).

What ever job will pay the most for your time is the job that should help you fund your Bitcoin or Silver or whatever hobby. Faucets pay nothing...the lottery angle is appealing but there's no proof that the lotteries are fair. There's probably something better you could do with your time to earn Bitcoin/Silver/Dollars, etc.