It's hard to leave your sad-eyed furry friend behind when traveling to a wedding. If your out-of-town guests can't bear the thought of leaving their dogs at a kennel back home, encourage them to board their pooches at The Common Dog in Everett, 617-381-6363, commondog.com. Through the use of webcams, owners can check on their dogs wherever there's Internet access. A shuttle bus can be arranged to pick up pets and transport them to the cushy facility where staff plays with them inside and out. Grooming services are also available, and boarders need references from a similar establishment. (This is also a lower-guilt option for newlyweds leaving for their honeymoon.) Overnight rates start at $40; group discounts are available.