Mark your calendars, Disney World passholders. You are invited to a Sizzling Summer Sale at the World of Disney store. From 6:30 to 9 a.m. July 23, passholders can save up to 75 percent on select merchandise at the Downtown DIsney Marketplace location. In addition, there will be special door busters and surprise markdowns. No sign-up is necessary, though I’m told folks line up for these sales, so get there early if you’re interested. Guests must show valid passholder IDs and government-issued photo IDs to enter the store and at the time of purchase.