Choose and promote products to offer to your customer as upselling before paying the order.
You can encourage customers to purchase a product/service with a special offer just when they are more inclined to complete their purchase.
You will increase the conversions of the discounted product (based on studies, 30% of customers takes advantage of the offer) and global sales on your store.

WordPress Download Manager Pro
Onum SEO and Marketing Theme
Openpos WooCommerce Point Of Sale(POS)
MicroThemer WordPress CSS Editor
iThemes DisplayBuddy Carousel
GeoDirectory Custom Google Maps 
