Doorcount idea sheet · srchambercommerce.com/ideas/counter-add-on

One add-on at the counter

A single small, useful add-on placed by the register and mentioned once lifts the average sale without pressure.

Steps

Pick one item under $10 that genuinely goes with most purchases.
Place it where hands rest at checkout, with a clear price.
Mention it once, in plain words, and only when it fits what the customer bought.
Swap the item every month.

Add-on units sold, and your average sale.

Something available only for a few weeks gives regulars a reason to come back before it is gone.

Put three things that go together in one bundle at one price, so the bigger purchase is the easy one.

Put gift cards on the counter well before the holidays and make them easy to buy as a last-minute present.