I think the issue here is that we want to put our unique biological systems into a mathematical framework. The mind already has a way of knowing what the body needs, however, it doesn't provide a json feed. As a culture, I think we need to get more in touch with our inner selves instead of seeking the aid of an outside device.
Well, when you "pour all your money" into rent, you get z-e-r-o return on investment. Sure, the value of a purchased house can decrease but, at the end of the day, you have to live somewhere. May as well build equity while you're at it...
http://icomoon.io/ allows you to build an icon font using font awesome characters. Not sure if they have the most recent version of font awesome on there though...