Depends what custards want to offer me during the day as I can spend a few hours on/at a single property. Therefore most times I get quite well fed and watered so stopped taking food and drink out with me.
Best one was a full English from an old boy next door in the middle of nowhere. Mind I did offer to clear his gutters for free whilst doing a full exterior property clean for a landlord at the time. That included FSG's, windows & doors, conservatory in/out, paving, patio areas etc so I was there for a wee while.
I could make a long list of what I've been offered but that would just make me feel hungry. lol