I have found that I can do alot from my iPhone just as easily – here’s the link to learn how to create a “Pin It” bookmarklet on your phone. That has been productive when I’m sitting at the doctor’s office or in the middle of a long little league baseball game and my son’s not up to bat (ha!)

https://help.pinterest.com/categories/20058812-Mobile-and-Tablet-Help

On desktops, add the “Pin It” button:
http://about.pinterest.com/goodies/