A few summers ago, I volunteered to spend several messy days atop a wobbly ladder repainting the entire interior of a house -- for free. A couple of years later, I volunteered to spend a tiresome afternoon setting up a nursery and what felt like a thousand-piece dresser for this same home -- for free.
Why on earth was I volunteering for all this free labor??? Because both times, my friends who owned the home promised me a free, home cooked meal as payment.
Looking back now, I realize my friends were geniuses.