I also tend to wonder "How much?" and so, I thought of this question.
Programs (Churches and non-religous activites) for feeding the hungry, housing the homeless and helping those just coming back from such a helping hand.
I'd actually buy a former delivery truck (Like those
FedEx or UPS trucks) and convert it into a RV and do about a year of traveling around the USA. (Hint, when you see those trucks, you don't think "Oh someone lives in it") and thus it's easy to hide from those who'd demand you be in an RV park and spend money you don't need to.
Then, after traveling (For 1-2 years). Come back, find a nice Church, and volunteer the rest of my days helping those who need it. And also some time at the animal shelter helping those who cannot ask for help also.
Maybe buy beater cars, fix them up and give them to familes needing one also....18 months without a car sure lets you know how life is much easier with it.
Now, some might wonder 'Why not buy a house?" I don't need to have one if I have the truck and frankly, my relatives will do fine if they'd put their own efforts into working, saving their own money without expecting to inheirit from me.