What's DoingDOLL SHOW -- Friday 6 to 9, Saturday 10 to 5. About 100 tables of antique and modern dolls, teddy bears and toys. $7 both days, $5.50 Saturday only. Sponsored by the Now & Then Doll Club at the Riverside Dinner Theater, Riverside Drive and Sanford Lane, Fredericksburg. 703-580-1188.

RUMMAGE SALE -- Saturday 8:30 to 12:30. Used children's clothing and related goods. Mount Olivet United Methodist Church, 1500 N. Glebe Rd., Arlington. 703-527-5508.

RUMMAGE SALE -- Saturday 9 to 3. Memorial United Methodist Church, 9226 Colesville Rd., Silver Spring. 301-585-8015.

ORCHID FESTIVAL -- Saturday and Sunday 10 to 4. Brookside Gardens Visitors Center, 1800 Glenallan Ave., Wheaton. 301-962-1435.

GEM/MINERAL/FOSSIL Show by the Gem, Lapidary and Mineral Society of Montgomery County, Saturday 10 to 6 and Sunday 10 to 5. Displays by about 40 dealers, educational exhibits, children's activities. $4, under 12 free. Montgomery County Fairgrounds, Route 355 and Perry Parkway, Gaithersburg. 301-926-7190 or 301-212-7832

ANTIQUES FAIR -- Saturday 10 to 6, Sunday 11 to 5. About 120 dealers. $6.50, under 12 free. Sponsored by Soroptimist International of Fairfax County at George Mason University Field House, 4400 University Dr., Fairfax. 301-654-6483.

BENEFIT FASHION LUNCHEON -- Saturday at 11. $30, for scholarship and community programs. Sponsored by the Springfield-Annandale branch of the American Association of University Women at the Country Club of Fairfax, 5110 Ox Rd., Fairfax. 703-440-6835.

BRIDAL SHOW -- Saturday 11 to 4. Displays by caterers, florists and other vendors of wedding-related products and services; fashion shows at noon and 2. $10, under 18 free. Oatlands Plantation, on U.S. 15 six miles south of Leesburg. 703-777-3174.

BENEFIT ORCHID AUCTION -- Saturday 11 to 4. Sponsored by the National Capital Orchid Society and Friends of the National Arboretum at the U.S. National Arboretum, 3501 New York Ave. NE. 202-245-5898.

HAITIAN ART FAIR -- Saturday 11 to 7, Sunday 2 to 7, Monday-Wednesday 8 to 5. A benefit for Haitian outreach programs. St. Patrick's Episcopal Church, 4700 Whitehaven Pkwy. NW. 202-342-2800.

ART/CRAFT/PHOTOGRAPHY Show, Saturday and Sunday 1 to 5. Sponsored by Montgomery Village Recreation and Parks Department at North Creek Community Center, 20125 Arrowhead Rd., Gaithersburg. 301-948-0110, Ext. 334.

BENEFIT GALA -- Saturday at 7:30, with music by the Billy Price Band. $60. Sponsored by Ballet Theatre of Maryland at the Annapolis Elks Club, 2517 Solomons Island Rd., Annapolis. 410-263-8289.

"TASTE OF THE TOWN" -- Sunday 5 to 8. Sample specialties from area restaurants. $12. JEB Stuart High School, 3301 Peace Valley Lane, Falls Church. 703-256-8794.