Backs made to be written on
Each back is laid out its own way, so pick the one that matches how your front desk works. One has a calendar tile for the date, another a soft circle, a row of days to tick, a table for a series of visits, or boxes for the service: a cleaning, an exam, a manicure. A vet card has a line for the pet's name, a groomer's card a drop-off time, the tattoo studio's card a line for the deposit, and a tutor's card a clock face to draw the time on. The labels sit small under or beside each line, so the handwriting is the biggest thing on the card.
Order them on the writable stock
A ballpoint skips on glossy card. Appointment cards print in full color on the front and on a back with a finish that takes a pen or a pencil, so the receptionist can fill one in and hand it over in a few seconds. Every template leaves at least a quarter inch between lines, which is the room handwriting needs.
The notice line
A short, polite line saves empty chairs: "Need to change your time? Please give 24 hours notice," with the phone number beside it. Healthcare practices keep the wording plain, with no promises about results, and a garage can add the mileage or the vehicle so the service desk has what it needs when the customer calls.
From the shop: Fill in the card while the customer is still at the desk, and read the date back to them. A card written out in front of someone is one they keep.