If your conference is giving out a USB key with the conference presentations and handouts at registration, consider also having a “Refresh Station.” This sponsorship opportunity includes a central gathering area for participants to:
Refresh their USB keys (at plug in stations) and get the latest information posted.
Refresh their bodies with fresh, hot coffee and cookies
Refresh their laptops/cell phones with electrical outlets for recharging
Refresh their minds by meeting new people and exchanging ideas at the tables
It might even be a fun place to add a massage station!