Q: Where can I find a Windows 8 end-user cheat sheet with the most useful keyboard and touch commands?
A: Windows 8 users need help with touch and keyboard commands. Below is an image that displays the key shortcuts I've seen used by many organizations and that are most useful to a user.
Print it out as a small card and leave it on the desks of users. You can put your organization's logo on the back if double sided.
You might also look at Michael Otey's "Top 10: Windows 8 Keyboard and Mouse Survival Guide." And Paul Thurrott posts Windows 8 tips at his Supersite for Windows, such as "Windows 8 Tip: Pin the Facebook Web App."
See more FAQs at John Savill's page.