I wish there was a viable solution for making micro-payments! How many people know to the penny what they need per week to remain independent? How many people

I wish there was a viable solution for making micro-payments! How many people know to the penny what they need per week to remain independent? How many people really know the difference between wants and needs? Since she quoted two different numbers in the story, I'd like to propose (assuming we figure out how to give small amounts efficiently) that we each give either $1.34 or $2.49. I think it would be cool to have at least 52 donors (one for each week of a year), but what if we blew it out with half of the HNers donating?