Frequent fliers, rejoice: It’s about to get much easier to replace your travel-size toiletries while on the go. 3Floz, a company that specializes in selling products sized for TSA approval, will open 25 automated retail locations, called 3Floz ZoomShops, in airports across America by the end of the year. The machines will be stocked with sunscreen, hair spray, toothpaste and more from the 50-plus prestige brands the company carries.