Doorcount idea sheet · srchambercommerce.com/ideas/first-visit-card

A reason to come back, handed over on the first visit

First-time customers leave with a card good for something small on a second visit within 30 days.

Steps

Choose a second-visit thank-you that costs you little: an add-on, a size up, a free check.
Print cards with the offer, an end date 30 days out and a line for the date it was given.
Ask every customer "First time here?" and hand the card only to first-timers.
Keep the cards that come back in an envelope, one envelope per week.

Cards handed out and cards brought back: the share brought back is your second-visit rate.

A simple stamp card turns occasional visits into a habit, as long as the reward is worth finishing.

Give one weekday hour a name and a small perk, and it can become the hour your regulars plan around.

A short list of customers who opted in to hear about same-day openings and quiet-day offers.