"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.
I was looking at it from the stand point of the fact that I spend a lot of free time at home anyway on the computer on the Internet doing the things that I like to do on the Internet such as listen to Internet talk radio, surf the web and post on forums. I was doing these things for many years before I heard of bitcoin and now that bitcoin exists and bitcoin faucets exist, then I can earn bitcoin doing the same things that I have been doing before bitcoin was created. In other words, I am not going out of my way to do this. It just happened to work out that way for me and I am taking advantage of that.
When I say no $ spent, I just meant that I gain an oz of silver without spending any $'s from my wallet. That is the metric that I prefer to focus on. As I have mentioned, the silver collecting is just a hobby. I am not stacking for SHTF. I just like collecting certain silver coins/bars and doing this is just another way to fund my hobby while I can still do the things that I normally do at home on the Internet.