Calvin Harris is making the most of his free time. The Scottish DJ, who is currently dating Taylor Swift, was seen running some errands during his day off. Clad head-to-toe in black, Harris, 31, was seen picking up a few things from a local pharmacy in Santa Monica, Calif. Swift is slated to perform in Iowa on Oct. 8. Meanwhile, Harris is due back in Las Vegas for his residency on Oct. 9.