It’s as though Apple constructed a giant magnet to lure passersby into this perennially busy store. Apple Store now takes online appointments, so plan ahead, and the shop should have you and your iProduct in and out in a jiffy. You can also hop the train to the Lincoln Park location, which is right smack-dab in front of the North Avenue Red Line stop (801 W. North Ave.; tel. 312/777-4200), and less than a 10-minute ride away.