0.1 per week is like a minimum wage is some poor contries, or more...
There's no secret, just work or create something new and useful and put people working for you.
What kind of work do you mean because at least bitcoin work is signature, trading, join bounty, do something like that you mean
Yes those are the best and most common ways of earning bitcoins but I doubt that even combining all those methods you would be able to earn that high amount on regular basis as in trading sometimes you will also bear a loss.