Fact: Every photograph is better if it shows a dog. Luckily, if we forget to include them, it's a good bet our dogs will remember for us. The result is virtually always a bonanza, given that dogs understand they're required to A) bring their goofiest expression or B) flash a portion of their anatomy that will add a hilarious element to the most precious moments. Actually, we're pretty sure that dogs think we're the ones photobombing their pictures. So remember: no pooch, no pic. And if there's already a dog in the frame, make it two.