Honestly yeah gambling is not an option to have 0.1 btc per week.. but honestly there is no way to have them per week.. maybe i just imagine maybe those escrow and manger in signature campaign are really making that amount per week.. or almost many people here can do it in trading..
So? It's there job and they are paid for it.
If you have something that you can offer any service that you can offer just post it in services section you will be paid for it if someone hires you and you will get a good amount of bitcoins.