If you would like the option to send a client directly to a specific package or create individual package links on your website, you can now do that by locating the individual package links in your account. (This feature is available in the eDesign and Full Service plans)
Click on the Packages tab at the top of your profile, then navigate to your packages editor (Manage My Packages)
For each package that you have created on your packages page, you can scroll to the bottom of it to see the package link. You can then copy that link to share directly with a client or add it to a purchase button on your webpage. This will give clients the feel of purchasing directly from your website without the notion of navigating elsewhere.
This video will provide a bit more info on how this works and what to expect: