Need help

Hello, here is my need, i want to create a group, where members will join this specific group,  but the next day I want this group to be empty. i need this group to never expire. The function of this is for example, a group called "free tonight" the members that want to let other know they are free to meet tonight will join this group, and other members will see who is free tonight, but the next day I want this group to be empty for the next night !!  is there anyone who know how i could do this or is there an module better than using groups that will enable me to do this...thank for you re help. 

Someone else asked about this same thing.  Some suggestions were given on how to do it by clearing out the favs list each night using a cron job that edits the database.  Trying doing a search for that topic; I think it was fairly recent.

By the way, Modzz has a Meet Me module that will probably do what you want to do better than using a group.

Here is the link: http://www.boonex.com/m/meet-me

Thanks I will take a look at the module.