Sarah created a Facebook "event" for Earth Day Free Day; you can RSVP here. That would be a good place to talk to others about sharing things, like BBQ grills, tables, lawn chairs, canopies (in case of rain), coolers, etc.
Want to get warmed up for the Capitol Hill Commmunity Garage Sale 2010? Come by and swap out your old books, cds, clothes, whatever.
Oh, and just in case you missed JT's marathon DJ set at Park(ing) Day, you can catch part deux at this event.
Have questions? Get in touch with Sarah at:
or me via this site, facebook, or twitter.