Approving the price first
Having the customer approve the price on a tablet before work starts, with a signature, prevents most disputes after emergency calls.
Paying on site
Tap or chip on site is cheaper and safer than calling in a card number later.
Commercial and property management work
Property managers often pay by business card. Level 2 data lowers the cost on eligible cards; ACH suits monthly invoices.
Small shops
One-truck operations should avoid monthly minimums and leases.