Rubbish purge at Grand Army Plaza?

Hello: Wondering if anyone got a flyer in the mail (this week or last?) that advertised some sort of event where you could donate your used clothing and unwanted electronics at Grand Army Plaza. I believe it was organized by Goodwill, who can give you a receipt of what you donated for tax purposes.

Anyway, just wondering on the date. Was it for this Saturday? I can't find the flyer so if someone knows, please fill me in. Thanks!