Today only, Shutterfly offers several discounts on its photo items via the coupon codes below. Of particular note, most of them can be stacked together for even greater discounts on larger orders. Shipping starts at 99 cents, or get free shipping with orders of $39 or more via code "SHIP39". The coupons:

• 40% off everything via code "CELEBRATE40"
• 25% off regular-price photo books, gifts, more via code "KNOT25ORDER"
• 8x8 photobook for free via code "AC2C-2XY4-WG6J-9XXVDG"
• 2 8x10 digital prints for free via code "SUMMER"
• 50 4x6 digital prints for free via code "YUR49S"
• 30 4x6 digital prints for free via code "30FREEPRINTS"
• 30 more 4x6 digital prints for free via code "30PRINTS"