The ULTIMATE Amazing Race Group Date Night with ALL of the free printables you'll need to plan it. -- Our group is a mix of couples with kids and singles but it can probably be altered to the specific needs of each group.
Cheap & Free date night ideas by Haute|31- Really cute ideas. Love the one about finding books that describe the other person :)
Inexpensive and Quick to Prep Dates: 10 Dates for $20!
Color coordinated date night jar. At the wedding set on the gifts table, guests pick a color (amount) and write the date idea put the money in and drop in the jar. Keep for those times where you wanna go out but dont have the money or just need new ideas!