Past customers (who bought before but haven't recently) are usually easier to reactivate than acquiring new customers. Yet most businesses ignore them. Sending five personal emails to past customers today often produces meaningful results within weeks.
What to write
Personal note. 'Wanted to check in — how's [thing you sold them] working?' Brief mention of what's new. Specific offer or value to bring them back. No template feel — actually personal.
Why this works
Past customers know you. Trust already established. Often actively wondering about you. Low barrier to re-engagement.
Twenty minutes writing five emails. Better customer pipeline within weeks for most businesses.