Segments I use for my clients:

1.Customers

2.First time customers

3.Customers with 2 orders

4.Repeating customers

5.VIP Customers who placed orders greater than 3

6.VIP Customers who placed order who placed order which revenue is greater than 200

7.Last 30 days engaged

8.Buyers engaged 30 days

9.Specific product 30 days

10.Unengaged subscribers

11.Bounce email (Clean list)

12.Location based segment

13.Product based segment

14.Collection based segment

15.Sunset segment

16.High AOV segment

17.Low AOV segment

18.Potential purchasers

19.Winback segment