Don’t run out just yet, as the special doesn’t start until 4 p.m., but Robeks is offering smoothies for just $1 this afternoon — not free, but certainly significantly discounted compared with the $5 you normally have to plop down for the privilege of sucking pureed fruit and ice through a straw.

There are two Robeks in D.C.-proper: one at 4523 Wisconsin Ave. NW and the other at 1707 L St. NW. There’s also a couple in Rockville and at least half a dozen in Northern Virginia (you can look up addresses here). As you might imagine, you should expect a pretty long line at the downtown D.C. location this afternoon, so if you’re planning on taking advantage of the special, be prepared to wait.

Image courtesy Robeks