Looking to refresh your polo shirt collection -- today -- without making a trip to the store? There's a Google venture for that, and it's called Shopping Express. The service, which offers same-day delivery from Target, Walgreens, Toys R Us, American Eagle, Staples, Office Depot and a few local shops, has just opened its doors to testers in the San Francisco Bay Area. After signing up on Google's microsite, you'll be on your way to six months of unlimited free deliveries from select retailers. The service competes with similar offerings from Amazon and eBay, and, well, doesn't exactly seem like an obvious fit for Google. We're eager to see how it pans out -- hopefully, if it does turn out to be a worthwhile venture, it won't succumb to the search giant's annual "spring cleaning" ritual. The company is only accepting "a limited number of shoppers" right now, so if you're eligible, sign up at the source link ASAP.