This Sunday is the anniversary of the establishment of the U.S. Postmaster General. The Pursuit of things to do this weekend could comprise a series of postcards sent from Montgomery County, Pa., to family and friends far afield.

Dear Janet: It's September 21, and I had the most entertaining late-morning/early-afternoon at Morris Arboretum, watching "Upstream," a choreographed duet dance staged in water. It was so entertaining and yet peacefully graceful that, after seeing it Saturday, I may go back again for the showing on September 22 and watch again. I can only describe it as a celebration of human's interaction with nature at its barest level: water, rock, air, muscles and bone. Best of all, it was free.

American Heritage ChocolateHey, Chocoholics Back Home: Get a load of this: Went to a demonstration of American Heritage Chocolate on 09.21.13 at Pottsgrove Manor. Not only learned that chocolate had historical significance but also that back in the day, it was more common as a drink than a candy bar. It was also enhanced with flavors like cinnamon, nutmeg, orange, vanilla and even chili pepper (!). Plenty of samples. A yummy afternoon!

Hi, Slicker: Does anyone else from our college days still call you "Slicker"? Ha-ha. Just a quick note that I got to hear in concert one of our faves at the Keswick Theater. Lucinda Williams! Remember her? Grammy Award winner. She wrote "Passionate Kisses." Later recorded by Mary Chapin Carpenter. Awesome night, Sept. 21. Next time you're in town, Keswick tix are on me. Say Hi to "Pookie" for me. Ha-ha.

Great-Grampa: Thought of you today, September 22, at the Colonial Theater. Remember when you would tell us stories of watching silent movies with organ accompaniment? Well, I got to experience one for myself, right here in Phoenixville. The feature was the 1920 swashbuckler The Mark of Zorro, starring Douglas Fair-somebody. The organ was really cool, too, providing not only the score but also some sound-effects. Swish! Boom! Crash!

Dora: Knowing how much you love little street festivals and art shows, I had to drop you this line about the September 22 Narberth Fall Music & Arts Festival. Live music ran all day long, and the older kids got a kick out of the bands (Vox Prophet, Beats Walkin', The Zing Kings, and Nash & the KZP), and little Katelyn loved Ari the Magician. I got to wander the "Artist Alley" and look at some really charming, handmade pieces. Don't tell Chet, but I picked up a gorgeous lamp for the front hall. TTYSoon.

Mom: We're back at the hotel after a full day here in Montgomery County, Pa. Who knew there were so many things going on? The boys were screaming with excitement while zip-lining. And then we laughed ourselves silly watching Three Stooges shorts. Meals have been fantastic. So has the hotel. Thanks for the recommendations. Say Hi to Dad. Love ya.

Speaking of postcards, don't forget that your opportunity to win your own postcard - of your own shot - continues as part of the Valley Forge Convention and Visitors Bureau #ForgeUrPostcard contest on Instagram. Entering couldn't be easier: At your favorite site or event in the county, snap a pic. Upload it to our Instagram page. Tag it with #ForgeUrPostcard. And cross your fingers. Fifty lucky entries will have their shot turned into a professional-looking postcard. You can either snail-mail it off to someone special. Or scrapbook it for yourself and see what "develops."

#ForgeUrPostcard Contest