Grandma Millie and Grandma Fran + green screen roller coaster = 80 seconds of pure hilarious joyride. Please, god, let this be a series. Next stop: Grandmas in Space!
Step one: bring your iMac to a Panera Bread (US bakery/cafe restaurant chain). Step two: play WoW on it. Step three: be old. Step four: win the unconditional respect of the entire internet, forever.