Good Advice

Jailed publicist Lizzie Grubman got advice on surviving jail time from someone who's been there, done that -- Long Island Lolita-turned-columnist Amy Fisher. Grubman is serving a 60-day sentence at Suffolk County Jail for crashing her Mercedes SUV into a crowd outside a Hamptons nightclub. She'll be freed on Friday with time off for good behavior. Fisher was released from prison in 1999 after shooting and wounding the wife of her auto-mechanic boyfriend, Joey Buttafuoco. "Be sure to shower in your socks," Fisher suggested. "If you don't, the foot fungus you'll acquire will last far longer than your stay."