Email remains one of the highest-ROI channels available — you already own the list, there's no algorithm deciding who sees it, and it costs almost nothing to send. Most small businesses use it for one thing only: the occasional promotional blast. That's leaving most of the value on the table.
1. Welcome flow
The moment someone signs up or makes their first purchase, they're at peak interest — and most businesses waste it with silence. A 3-4 email welcome sequence introducing who you are, what to expect, and one clear next action converts far better than a single "thanks for subscribing" email ever will.
2. Abandoned cart / abandoned enquiry
Someone who filled out a form or added something to cart but didn't finish is one of the warmest leads you'll ever get. A simple two-email sequence — a gentle reminder, then a small nudge like answering a common objection — recovers a meaningful share of people who were one step away.
3. Post-purchase / post-service
This is where repeat business and reviews come from, and it's the most commonly skipped flow. A short sequence — thank you, how-to or care instructions, then a review request at the right moment — turns a one-time buyer into someone who trusts you enough to come back.
Quick win: send the review request 3-5 days after service, not immediately — give the customer time to actually experience the result first.
4. Win-back
Customers who haven't purchased or booked in a while are cheaper to re-engage than to replace with new acquisition spend. A simple "we miss you" email with a genuine reason to return — not just a discount — often outperforms pure price-cutting.
5. Broadcast vs. flow: know the difference
A broadcast is a one-time send to your whole list — a promotion, an announcement. A flow is automated and triggered by behaviour, running quietly in the background for every new subscriber or customer without you lifting a finger. Most businesses only ever do broadcasts; the flows are where the compounding value is.
6. The metric that actually matters
Open rate looks nice on a dashboard, but revenue-per-email and click-to-purchase rate tell you whether email is actually growing your business. Track those, and treat everything else as a secondary signal.
Set these flows up once, and they keep working every day after — no ad spend, no algorithm, just a message landing in an inbox your customer already checks.