Email and SMS campaigns for a massage or spa business
Your client list is the highest-return channel you own and the one most spas touch twice a year. Three campaigns are worth building. The twenty one day nudge to anyone who left without rebooking, which is the largest recoverable pool in the business. Package and gift card expiry warnings, because unused balances become refund arguments and lost visits. And gift cards from mid October through December, then three weeks before Mother's Day.
Membership retention belongs here too. A failed card unnoticed for a month is a cancelled member, and a one-line text on the day it declines saves most of them.
Cost is a few tens of dollars a month against revenue that arrives the same week. The mistake is discounting every message, because a list trained on coupons stops buying at full price. Two weeks in, working looks like bookings tied to a specific send, and an unsubscribe rate under one percent.