How do they do it?

Okay...so, while I may not blog as much as others do and I definitely don't advertise a lot of products on my blog, I still wonder, how do people get so much free stuff? My friend, Sarah, gets to read books ahead of time and write about her thoughts. Another blog I occasionally look at it gives away little free items and gift baskets away all of the time. And my friend, Jennie, is a secret shopper and gets to go to restaurants and get her money back afterwards...come on...I'll take some free stuff!!! Anyone have access to anything?