They are everywhere:

http://www.press-citizen.com/article...text|Frontpage

The gauntlet of food and merchandise vendors lining Melrose Avenue on Hawkeye football gamedays could be shut down if Iowa City follows through on a recommendation by a committee of municipal staff members.

The committee is proposing that the city begin enforcing its zoning regulations for the stretch of sidewalk and front yards that for years have served as a tent-and-table marketplace on fall Saturdays — a practice to which the city has traditionally turned a blind eye.