Librarian’s Choice book discussion, a librarian leads a talk about “The Remains of the Day,” Kazuo Ishigur’s novel about a “perfect butler,” set in post-World War II England. 7 p.m., Quince Orchard Library, 15831 Quince Orchard Rd., Gaithersburg. Free. 240-777-0200.

Youth essay contest, March 1 is the deadline for the competition for Montgomery County students in eighth grade or younger. Winning entries of 100 to 500 words will be published in Washington Parent magazine, and the writers will be honored at the Bethesda Literary Festival in April. For details and entry form, visit www.bethesda.org. Co-sponsored by the Bethesda Urban Partnership. 301-215-6660.

Clean Water Summit registration, for the March 3 event at Veterans Plaza in Silver Spring. Sponsored by the Montgomery County Department of Environmental Protection. http://cleanwatersummit.eventbrite.com or 240-777-7744.

Fresh produce distribution, for anyone in need of food; take your own bag. Sponsored by the National Capital Area Food Bank. Distribution begins at noon, New Creation Church, 11005 Dayton St., Wheaton. Free. 301-649-6000.

Election judges needed, to serve at polling places for the April 3 primary. Those with Spanish-language skills are especially needed. Montgomery County Board of Elections, 240-777-8532 or www.777vote.org.

Friday, Feb. 24

Family bingo Night, prizes for adults and children. Pizza, popcorn and drinks available for purchase. 7-9 p.m., Clara Barton Community Center, 7425 MacArthur Blvd., Cabin John. $5 per card (good for the whole night). 301-229-0010.

Opera: “Die Fledermaus,” the Victorian Lyric Opera Company performs the Strauss operetta about flirtations and mistaken identity. 8 p.m., Friday, Saturdays, March 1 and 2; 2 p.m. Sunday and March 3. Rockville Civic Center Park, F. Scott Fitzgerald Theatre, 603 Edmonston Dr. $20; seniors, $18; students, $16. 240-314-8690 or www.vloc.org.

Saturday, Feb. 25

Student-run sale of used cars and computers, the Montgomery County Students Foundations Office is sponsoring a sale of refurbished vehicles and computers worked on and tested in classes in the Automotive, Construction, and Information Technologies programs. 9-11 a.m., Damascus High School, 25921 Ridge Rd. 301-929-2190.

Gaithersburg indoor flea market, new and gently used items for sale. 9 a.m.-1 p.m., Montgomery County Agricultural Center, 16 Chestnut St. 301-258-6350, Ext. 162, www.gaithersburgmd.gov/events or khux@gaithersburgmd.gov.

Saturday Night Swing Dance, featuring the Tom Cunningham Orchestra. Beginner’s lesson at 8 p.m. with swing dance instructors Tom Koerner and Debra Sternberg, followed by dancing until midnight. Glen Echo Park, Spanish Ballroom, 7300 MacArthur Blvd. $15; ages 5 to 13, $8. 301-634-2222.

Year-round farmers market, produce, seafood, meat, baked goods, flowers and more. 8 a.m.-noon Saturdays. Train station parking lot (Howard Avenue), Kensington. 301-949-2424 or www.tok.md.gov.