FUNDRAISER: Design on a Dime opens tonight; the Housing Works event will be kicked off with a special event this year before opening to the public for free tomorrow. This is the fourth annual fundraising event, and tonight ticket holders "will view the room vignettes, enjoy exclusive preview shopping, cocktails, hors d'oeuvres, a silent auction and live entertainment." 6 to 8 p.m. // The Metropolitan Pavilion [125 W 18th St] // Ticket Prices Vary MUSIC:......