Insert 10 of your business cards in the exclusive card holder.
Introduce the toolkit after closing, letting your client know there's a utility knife included to open packing boxes and all items needed to get that first picture hung on the wall of their home.
Set the expectation: "When you heart of the family and friends needing my services, please share my business card with them."
Let them know: "No need to waste a kitchen drawer, there's plenty of room in the bag to add your favorite items." The more they add, it becomes their go-to kit, creating more touch points.
Touch base once a year by bringing them a useful item to add to their kit. This also allows an easy way to equip them with more business cards if needed.