My whole Etsy shop has some discount offers continually applied to the entire store.  In a typically slightly annoying fashion, they don't apply automatically; You have to enter a silly coupon code at Etsy shopping cart checkout.  Still, they are worth having.

1  OFFER10

If you put something in your cart and then abandon it, you should get sent an email with OFFER10.  10% off no matter what.

2  SAVE10  

10% off if you have any two items in your cart.

3  SAVE15  

15% off if you have any three items in your cart.

2  SAVE20 

20% off if you have any four items in your cart.