Shutterfly has a strong 40% off sitewide code on the page right now, and it works well for most orders. However, the site also has several competing sales, including a 50% off sale on almost everything, so the best choice depends on what you're buying and how much you're spending.
Small orders under $99: If you're picking up a single item or two, the featured 40% off sitewide code will save you money quickly. Just apply the code at checkout. If you're a brand new customer, you can instead use the new customer free shipping offer, though only one offer applies at checkout, so compare the two and pick whichever gives you the bigger discount.
Browsing the 50% off sale: Before you use the sitewide code, check whether your items are included in the 50% off sale that's currently running on almost everything. The sale items will beat the 40% code—you save an extra 10% on anything marked down—and you don't need a code at all, just add items to your basket.
Photo books: If you're buying photo books, the featured 40% code works, but there's also a targeted $20 off extra discount on layflat photo books if you use that separate code. Run the math: on a $50 photo book, the 40% code saves $20, so both codes give the same saving. On a $100 book, 40% off is $40, which beats the extra $20 off code. Pick whichever code produces the larger discount for your specific book.
Photo prints and framed prints: Framed and metal prints have their own 40% off sale running. Photo prints might be included in the 50% off sale or might qualify for the free selected photo prints Labor Day deal—check your specific items before applying the sitewide code.
Orders over $99: Once your basket hits $99, the free shipping code becomes available if you haven't already used another offer. Since most Shutterfly orders qualify for free economy shipping anyway with the 40% sitewide code, this is less of a win than it sounds—but if your items aren't eligible for the sitewide code or the sale, free shipping brings its own savings.
At checkout: Only one code or offer applies, so add your items to the basket and compare. If the 50% sale includes your products, you're done—no code needed. Otherwise, try the 40% sitewide code. If you're buying a specific product type with a dedicated discount (like the layflat photo books), calculate whether that targeted code beats 40% off. Whichever produces the biggest saving is your answer.