1. Shopping Cart 

1.1. Offer a discount code when visitor is about to leave:

1.2. Offer a discount code for free shipping:

1.3. Show a limited time discount:

1.4. Remind about return policy:

2. Newsletter

2.1. Offer a coupon code for subscribing to newsletter:

2.2. Ask to subscribe to latest news:

3. Frontpage, categories or products

3.1. Show the top promotions & discounts:

3.2. Show the most popular products:

3.3. Offer a discount for first purchase:

 4. Registration Form

4.1. If it is possible to purchase products without signing up, remind about that: