This is what you see when you click “We Have Arrived” on your phone at the actual event. You show this to the door staff:

Booked, Not Paid: K743, $45

• Marjerye de Coiff d’Azure, adult member 8123456: $15
• Homer of Springfield, adult member 8123457: $15
• Elise the Studious, minor member 8123458, age 12: $5
• Margaret the Loquacious, member 8123459, age 2: $5
• Bartholomew Shortsbane, member 8123460, age 10: $5

Total: $45 not paid.

No booked non-members. No special cases arranged.
Payment to be made in cash or cheque to SCA College of St Jebediah UNO.

The door staff have a list of booking codes like K743 and amounts.  You give them the money, they tick you off the list, and that’s that. No need to show membership cards because that’s already handled, meaning that getting through the door is quick and easy for everyone.