Important websites, without these, I wouldn't have found many of our fun adventures:
http://kidfriendlydc.com/
http://supernovamommy.com/
http://www.funthingstodowithkids.com/calendar-of-events-fun-things-to-do-with-kids-in-washington-dc-maryland-and-virginia/
Here's a "database" of our adventures...all in one place! List includes places from the DC/MD/VA area as well as some from our travels out of town.
Chick-fil-A (Tot Time in Fairfax, VA)
Fair Oaks Mall Children's Play Area (Fairfax, VA)
Color Me Mine (Fairfax, VA)
Paint This (Old Town Alexadria, VA)
VRE Santa Train (I put the link to my blog page, link should work next November!)
Boat Parade of Lights (Old Town Alexandria, December)
Fairfax City Children's Concert Series (Fairfax City, VA)
Cox Farms (Centreville, VA)
Burke Lake Ghost Train
Wakefield Farmers Market (Annandale, VA--October trick or treat)
Nall's Produce (Kingstowne, VA)
Pope's Head Playground (Fairfax, VA)
Heather Hill Gardens (Fairfax Station, VA)
Bill Gray's Kid's Night (Rochester, NY)
Greece Community Center (Rochester, NY)
Green Acre Farm and Nursery (Rochester, NY)
Homestead Farm (pick your own apples: Poolesville, MD)
Wee Got the Beat (Musical Therapist out of Herndon, VA)
Clemyjontri Playground (McLean, VA)
Holley Canal Falls (Holley, NY)
Ontario Beach Park (Rochester, NY)
The Sandbox Playground (Fairport, NY)
Buffalo Bills Training Camp (Rochester, NY)
Adeline Park (Greece, NY)
Pineway Ponds Park (Ogden, NY)
Calendar of Summer Concert Series (Fairfax County)
National Zoo (DC)
Petco Pet Stores (national)
Josie's Yogurt (Fairfax, VA)
Trailside Park (Ashburn, VA)
Lebanese Tavera (Kids shows) (Arlington, VA)
Fairfax Corner (fountain) (Fairfax, VA)
Pinkberry Frozen Yogurt (Fairfax, VA)
Small Talkers (Centreville, VA)
Gymboree (national)
Lee District Spraypark (Franconia, VA)
Burke Lake Park (train, carousel, etc.) Burke, VA
Barnes and Noble story hours (national)
Maryland Zoo in Baltimore (Baltimore, MD)
Hidden Pond Nature Center (Springfield, VA)
Springdale Farms (Ogden, NY)
Strong Museum of Play (Rochester, NY)
Chuck E Cheese (national)
Jammin' Java Kids Shows (Vienna, VA)
Butterfly Exhibit at Smithsonian Natural History Museum (DC)
Royal Lake Park (Fairfax, VA)
Burke Nursery (Burke, VA)
South Carolina Aquarium (Charleston, SC)
....under construction....