Music Lover
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Sometimes DW and I might offer them food and snacks while they work. For example, when we had folks repaving our driveway it was a hot day, and we put out a cooler with drinks, sandwiches and snacks and told them to help themselves.
When my brother had a house moved on to a new foundation, he found out that the crew was planning to drive to town (he lives 15 minutes outside of a small town) for lunch. They made a pot of coffee for the crew in the morning and put together a tray of sandwiches for their lunch and provided a cooler with water and other drinks. A small gesture like that goes a long way and will often pay off if the crew has to do a little "extra" during the job.