In the past 40 years I've embarked on a number of hobbies and liesure pursuits (but never abandoning camping and hiking). I discovered that one sure sign I was going to be devoting a lot of time and energy on a new pursuit is pulling off the side of the road if I see some discarded item that might be useful.
This evening, I pass a job site and do a U-Turn to go back to it. Why? I see pictures of guys with Tyvek on the ground under their dang hammocks to put their feet on and there's Tyvek on the walls. Now I need a hunk of it.
Worst part of it is that it was the cleanest dang jobsite I've ever seen. Not one scrap of Tyvek on the whole quarter acre that wasn't nailed to the wall. I did successfully resist the temptation to pull out the Swiss Army knife and carve of a couple square feet. Even the dumpster had been taken off the jobsite so I couldn't even go diving.