To my surprise, after checking out a handful of sites, I found one e-tailer that covered all the bases - eToys.
Link from anywhere you ask for registration - (create account, email sign up etc) to reduce friction and increase opt-ins.
You may also want to read: Registration Usability - Permission Email Dos and Donts
Checkout - eToys maintains a footer menu throughout the checkout process along with other important policies.
FAQ style bookmark links - Most privacy policies are ridiculously long. Bookmark links give the reader an overview of what you're talkin' 'bout, and the ability to jump directly to what they want to know.
Show trust badges and seals prominently - If you've paid for these seals to boost trust and conversions, why not leverage them on your privacy page too?
Bold headlines and sub-headlines - Nice and easy to scan.
Plain English, mixed case - THERES NOTHING WORSE THAN 459 LINES OF LEGALESE, IN ALL CAPS. IT HAPPENS. IT SHOULDN'T. LIGHT GRAY TEXT SUCKS TOO.
D-I-Y Privacy Policies