The sign for "learn" American Sign Language (ASL). I took a year of sign language in college and barely ever get to practice it. As a nurse, when I DO remember how to say "Hi, my name is ____ and I'll be your nurse. Are you having any pain right now?" my deaf patients always hug me. I need to keep up on some of the more obscure, less used signs
Grammar Island (part of Michael Clay Thompson's language arts program): Though we use separate spelling and grammar programs, too, MCT teaches language in such a beautiful, fun way. I can see this program gradually becoming the only thing we do for LA aside from reading great books.