This deal has ended.
THrough 9/14, Restaurant.com is taking 80% off Chicago dining certificates via code SAVE. This drops $25 gift certificates to Blue Frog's Local 22, Giordano's, and House of Blues from $10 to $2 each. You can search their selection of participating restaurants by zip code or neighborhood. Note that every restaurant has individual exclusions such as alcoholic beverages, select days, and spend thresholds.