Great start, Marcy! I've added some ideas in a blog here:
multifamilyinsiders.com/home/multifamily...Retention-Ideas.html
. And here are a few more low cost resident retention ideas:
Flag seeker - Place landscaping flags (found at Home Depot or Lowes) around the community, set your residents into groups, and then set them loose to find the flags! The first team back with X number of flags wins!
Annual Flag Football Game - By labeling it as an "annual" event, you give the event more prestige and it helps with attendance!
Paper Airplane Contest - Have prizes for best design, coolest tricks, and longest flight.
Fantasy Football Leagues - An ongoing event that helps residents get to know each other over the course of the season!
NCAA Tournament Pick 'em - Prizes for the best bracket in the community.
Meet Your Neighbors Contest - Over a set period, possibly a week, run a contest inspiring residents to meet each other. The resident with the most neighbors on their list wins a prize!
Annual Community Garage Sale - A major opportunity for outreach marketing, set up tables in your parking lot and have residents come out and sell the stuff lying around their apartment! Even allow non-residents to participate in the sale to create buzz and spread the word!
Karaoke Night - Film it and put it on your apartment community blog!
Gingerbread House Contruction Night - The raw materials should be fairly inexpensive and provides a great (although possibly mess) way to get residents involved!
That's enough for now! Have ideas to share? Want to brag about an event that was a huge success? Post it here!!