Mel and I don't seem to ever visit each other without something in hand - a jar of jam, something home grown or a piece of clothing, even something we saw while op-shopping which made us think of the other. It's a natural thing and it makes me happy. Seeing someone else get joy out of something you made, or wear a beautiful dress you no longer fit in to can be really uplifting.
I also use freecycle quite a bit. I recently posted some items and when a lovely girl called Em came to collect a couch and laundry basket for her new home, I thought she looked a little familiar. Turned out she knows Mel and a half dozen of my friends! She brought a home grown rockmelon and an eggplant, and some of her hen's eggs. It reminded me of the days when you'd never think of visiting a friend empty handed.