If I may ...
Po Folks was on the south side of a motel that would be sitting in front of Best Buy's parking lot. Bob's Big Boy, (first use), now Denny's, was south of and next to the/a Sunoco gas station that was in front of the drive in movies. The original use of the building where there used to be a bagel place, was a Burger Chef. Red Hot an Blue building was first a Rustlers Steak House. Directly across 301 was in the other shopping center was a Western Steer. Also across 301 at the north end of that center was Chesapeake Seafood House where you could order blue crabs, shrimp etc.. In the old Waldorf Shopping center inside the People's Drug Store, (next to the A&P), was a diner where you could get breakfast lunch and dinner. Also in the center, between the Giant and A&P, was a carnival every year in that empty field. McDonalds was the first major chain fast food joint in Waldorf when it opened on 301 north.
The original stores in Shopper's World were a Peebles, a Dart Drug, Radio Shack, Movie Theater, a drive up window liquor store, a bird/pet store and others I fail to remember. The original Waldorf, (the first), movie theater, (the original building still stands), was at the corner of Rt 5 and 925, then was a High's Dairy Store for the longest time, (now a Spanish food store), and next to the Highs was Accokeek Sports where you could buy guns. In the back ally was the laundromat and a pizza joint. Across the street was the barber shop and a Ben Franklin Five and Dime, (today's version of a dollar store I reckon). Curly's Duck Pin Bowling was a cool place to take a date back then. The old gas station on Rt 5 north past Post Office Rd was Halloran's Sunoco, and just before that on the right was Choo Choo's, (Topless), Lounge, and before that the Waldorf Roller Skating Rink. Further north, before the train tracks was Friendly's Tavern, a local watering hole. At one time there was only one bridge into St. Charles. After going over into St Charles, the road split with two lanes going in down the hill, and on the other side two lanes merging into one to cross the bridge. The St. Charles Sportsman Club was on the partial swamp land where the mall now sits. The Holiday Inn was the first national hotel to open in Waldorf.
The Stardust Inn, after slots were outlawed, became a band concert venue, then a bowling alley.