The third time wasn't a charm in Home Depot's long struggle to open a store in San Francisco. The big box home improvement chain has suspended its two-year effort to build a 120,000-square-foot store and garden center Park at Toland and McKinnon 30th annual Pittsburgh Home & Garden Show Where: David L Rivers Casino, with the PG's Bill Toland Sunday 10:30 a.m.: My Best Gardening Tips with PG's