Wiener's Circle is offering free dogs at its Lincoln Park shop, 2622 N. Clark Street, from 4 to 6 p.m. on July 20.
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Portillos is offering free delivery through July 24 when you order online. Kids can mark the occasion with a build-your-own Portillo's hot dog downloadable craft here.
WATCH: How do you like your hotdog?
How do you like your hotdogs?
Devil Dawgs - with locations in South Loop, Wicker Park, Lakeview and Gold Coast - will give you a free Chicago-style or vegan hot dog with any purchase over $10. There is a limit of one free dog per person.
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And finally, the Oscar Mayer Wienermobile will set up shop at the Pilot Flying J, 1050 Busse Road, in Bensenville, from 10 a.m. to 2 p.m.
By the way, Americans eat an estimated 7 billion hot dogs every summer.