Oh - so many things! Look:

You get a WYSIWYG Page-Maker:

• create new pages with a custom built-in WYSIWYG editor that works like a word processor (no need to know html!)
• article creation is a snap with EZpages - create FAQ pages, partner pages, tutorials and more!
• links to pages or other resources/websites can be displayed in a number of ways (top of site, left or right sidebars, and/or at the bottom of the site)
• there is a built-in contact page that your customers will use to contact you
• you can turn off articles and information pages with a click of the mouse
• put your products on sale or mark them as inactive or out of stock with the click of a mouse

You get a powerful, full-featured shopping cart:

• the built-in catalog search feature makes it easy for customers to find what they're looking for
• you can easily create unlimited categories and subcategories if you want to make your cart unique
• you can have category and sub-category description pages
• you can turn off categories and products with the click of the mouse
• you can easily assign products to more than one category by linking the products together (a very handy little feature!)
• thumbnail images pop up to show larger images automatically so you only have to upload one image
• lightbox feature pops up a larger image when you click on a product picture
• breadcrumb navigation makes it easy to maneuver around the site - click on the referring category when looking at a product to easily go back
• you can display a section of featured products on home page
• you can display a section of new products for current year on home page
• you can display a list of best sellers for the entire site on the home page and for each category the customer clicks on
• if you wish to offer your current customers a discount, you can administer coupon codes with ease
• if you wish to do so, you can sell gift certificates as virtual products - the customer puts in a code to redeem online (great for gift-giving!)
• you can cross-sell products with others (so - if a customer buys the Laundry Detergent, you could show the Stain Remover and Dryer Balls)
• Shopping cart has sales tax calculator that you can set for your own state or province (Zen is the ONLY shopping cart on the market that is truly Canadian tax-friendly!)
• For Canadians: Zen Cart is Canadian Tax-Friendly:
  
  Tax calculation for the US and Australia is pretty simple, but Canadian tax configuration is an extremely complicated process and no other e-commerce product does it correctly out of the box. Canadian law requires that Canadian merchants state GST and PST separately at checkout by both a percentage and a dollar amount. Zen Cart does this. Virtuemart and WP-e-Commerce do not. On the face of it, this may not seem like a big deal, but it is. If your cart doesn't do it,  you are actually breaking the law. Look:

You get statistics reporting:

• You can generate a variety of sales reports from the admin area of your site to monitor your growth over time - Examples:

You get Built-in Email Marketing:

• Zen has built-in Newsletter management with a customer-subscribe option.  Build customer loyalty by sending a newsletter to your customers in text or html to let them know about upcoming specials, news, etc.

Neat Features for Customers:

• buyers the ability to specify a shipping address different from billing - this is great for gift-giving!
• the ability to choose how many of a product to add to your cart - this seems silly - but most Norwex carts don't offer this, so if you want - say - 3 of something, then you have to go back to the same product 3 times and re-add it. This is very annoying for shoppers and can make them decide not to buy
• Product Reviews - If you choose to use this feature, it allows your customers to make reviews of your products.  You are able to approve the reviews before they are published to the site
• Order Tracking - If you choose to use this feature, your customers can log in to their accounts to view their order status.  You have the ability to keep the customer apprised of the status of their order from the time it is order until the time it is delivered
• a customer order history available to both you and your customer
• If you choose to use it, there is a built-in Tell-a-Friend feature that allows your customers to refer your website to others

Other Nifty Features:

• you can change the look of your website by moving information around - done with the click of your mouse
• there is a built-in site map feature if you want to use it
• a built-in banner manager that allows you to put text & image-based ads, recommendations, etc. on either side or bottom
• you have your own password protected administration area that you can set up with your own unique password
• if you wish, you can generate invoices for customers
• Zen Cart is an extremely fast-loading program (this keep people from clicking away and onto the next site)
• And much more!  Zen is ever-evolving and new modifications are available regularly.

Search Engine Optimization:

• Zen Cart is extremely search-engine friendly (so your site can get found!) - each product can be individually meta-tagged

Ease of Use:

• Zen Cart is extremely easy to learn to use. It is an intuitive program, and its features have been well-documented with step-by-step how-to information.