How to find grant proposal samples? Compared to writing a research paper, I found writing a grant proposal to be much more intimidating, because there aren't any finished products that I can compare to. I am wondering if there are any good samples out there so that I can see what good proposals are like, especially for social sciences. Thanks!

Related question: maybe I am naive, why don't NSF and other funding agencies publish the full proposal of the ones that were accepted, say 5, 10 years after the funding ends? It seems to me that these older projects should have wrapped up already and there are probably minimal risk of being scooped.
Your best bet is probably to ask your colleagues if they would have you let a look at their (successful) grant proposals. That way you can also ask questions.