If it was love at first bark for them, send a card to help someone celebrate National Dog Day on August 26th . The smitten dog owner on on this greeting is getting lots of hugs from her fluffy pup, and she couldn't be happier. So if there's a dog lover in your life, remind them to celebrate the four-legged friend who has made his or her way into their heart. Because if they have a doggie who they care about, it's the perfect time to show their adorable pal how truly special they are.