A clean, professional one-page PDF: name, phone, email, whether they have an agent, and how interested they are. The five things a follow-up actually needs. Print as many as you want.
Download the free PDFPaper catches whoever feels like writing legibly. At a busy open house, a third of your visitors walk past the clipboard, phone numbers come out unreadable, and the follow-up starts whenever someone retypes the sheet into a CRM, if that ever happens.
Foyer replaces the clipboard with a QR code. Visitors check in on their own phone in under a minute, every buyer gets scored while they are still in the house, your seller gets a report worth forwarding the same evening, and every lead lands in your CRM automatically.