Today only, Petco takes 20% off sitewide with no minimum purchase required during its Groundhog Day Event. (Discount is reflected on the product page; food, litter, and flea & tick control is up to 10% off sitewide.) That ties our mention from four weeks ago as the largest percent-off discount we've seen from Petco since Cyber Monday, when it took 25% off sitewide. Plus, get free shipping on orders of $49 or more; otherwise, shipping starts at $5.99. Sales tax is added where applicable. Some exclusions apply.