Living with a medium to high energy, large breed dog in New York City has a few notable drawbacks. In addition to adjusting to living in a small confined space, dealing with city cacophony, we had to solve the dilemma of dog food. Back in California, driving to the pet store, picking up a 40lb bag of kibble and storing it in the house somewhere didn’t even cause me to flinch. Now in the city, I had to locate a retailer that carried Mr.Brown’s dog food in the 40lb size, figure out how to lug it home, and find room in the apartment to store it…man, the things we take for granted.
The nearest retailer that carried the right dog food in the right size is Petco in Union Square. I’m bummed that they charge a flat rate for delivery, they really need to reconsider zoning and charging per zone (ie. Trader Joes). I learned the hard way not to be a cheapskate and carry 40lbs home, so $7 bucks and a 3 minute cab ride later, I’m home. Petco Union Square is pretty huge and seems to carry pretty much all the major labels of food and a modest-decent selection of dog supplies (clothing, leashes, collars, toys). I’d give this location a demerit for poor customer service, but then again, that applies to basically all retailers in NYC.
One great thing about this location is its central location and proximity to the Union Square Dog Run. Whenever I get to this dog run and realize I’ve forgotten a toyl, I can run over to Petco and buy an overpriced tennis ball (seriously, don’t buy tennis balls here!). Or, I can stop by the Farmers Market on Mon, Weds, Friday/Saturdays 
As much as I’d like to shop at local dog boutiques, sometimes I welcome the predictability of a corporate chain store.