1. Your pup's favorite thing in the world is putting a smile on your face. Flickr: kciv4 2. And you have an absolute best friend for life, no questions. i.imgur.com 3. He's always willing to cuddle up next to you on the couch every night. i.imgur.com / ILDobeRescue.com 4. And no matter how big or small, your pup accepts you just the way you are. Flickr: dogsbylori 5. Her loyalty to you is unmatched. Creative Commons / Flickr: marine_corps 6. And even on the absolute worst day, he always finds a way to make you laugh. Flickr: orteaser 7. He invades every inch of your space in the BEST way possible. i.imgur.com 8. When you're gone, you know there's not a second that goes by that your dog doesn't miss you. i.imgur.com 9. But you know every time you come home you're in for the most loving greeting EVER. i.imgur.com 10. And when things aren't going right, just looking at their sweet face will make you feel even just a little bit better. Flickr: bullcitydogs 11. You never have to wait on anyone because you always have a reliable playmate... i.imgur.com 12. ...or a snuggle bud who just wants to cuddle with you all day. Flickr: pug_girl 13. She's your trusty travel buddy... awwww-cute.tumblr.com 14. ...and the cutest kind of co-pilot! i.imgur.com 15. He's there to celebrate with you during the high points... i.imgur.com 16. ...and comfort you during the low points. imgur.com 17. Waking up is a lot cuter with your best bud around. Flickr: benjamingolub 18. And good-nights are a lot sweeter, too. i.imgur.com 19. Not to mention, they're the BEST kissers ever. tabbyhusky.tumblr.com 20. Your dog loves you unconditionally, in a way no one else could. imgur.com 21. And most of all, she's your best friend, who sees you and loves you for everything that you are. imgur.com Love dogs? Sign up for our “Dog a Day” newsletter and we’ll send you an adorable pup every day! If you can't see the signup box above, just go here to sign up for BuzzFeed's "Dog a Day" newsletter!