SHOP MUSKOGEE DURING THE BACK-TO-SCHOOL SALES TAX HOLIDAY, Friday, Saturday and Sunday. The tax exemption will be for those qualifying clothing and footwear items which cost less than $100 per article. For a copy of the tax rules, go to the State Chamber’s Web site: http://www.okstatechamber.com/file_upload/SalesTaxHolidaytext.pdf.

FREE VISION SCREENING by Triad Eye Medical Clinic of Muskogee, 9:30 to 11:30 a.m. today, Surety Apartments, 117 N. Third St. Open to seniors 55 years and older. Screening will include evaluations and counseling for vision, glaucoma, cataracts, diabetic eye disease, macular degeneration, external diseases of the eyes and eyelids, and dry eyes.

RIVER COUNTRY WATER PARK, 11 a.m. to 6 p.m. Mondays through Fridays; 11 a.m. to 8 p.m. Saturdays; 1 to 6 p.m. Sundays through Aug. 14 and weekends until Sept. 3, U.S. 69 and Arline Avenue. Tickets: $3 to $5. Information: 684-6399.

PARENT'S NIGHT OUT, 6 to 10 p.m. second Fridays, Gore United Methodist Church, Fourth and Winn streets. Free. Infants to 10-year-olds welcome. Features crafts, storytelling, games, movies and pizza. Information: 489-5313.

PLAYNIGHT SERIES 2007, 7:30 p.m. first and third Fridays, Porter Round-Up Club. Events include flag race, cloverleaf barrels, pole bending and surprise event. Negative Coggins required, original copy. Concessions. Information: 261-9690.

COMMUNITY BREAKFAST, 8 to 10 a.m. Saturday, second Saturdays, St. Paul United Methodist Church, Activity Center, 2130 W. Okmulgee Ave. Free. Enter through the south doors. Information: 687-7571.

MUSKOGEE FARMERS’ MARKET, 8 a.m. to noon Wednesday and Saturdays, Muskogee Civic Center. Select from locally grown fresh produce, pickles, plants, flowers, herbal products, jellies, fresh bakery goods and handmade tamales. Information: 686-6939, doug.walton@suddenlink.net.

ANNUAL JAPANESE CULTURAL EXPO, 10 a.m. to midnight, Saturday, Expo Square Trade Center, Tulsa County Fairgrounds. Video games competitions, costume contests, art competitions, guest stars, a dance, live entertainment. Tickets: $10, children age 5 to 11; $15 for anyone 12 and older; kids under 5, free. Sponsors: Wizards Asylum Comics and Games, Cox Communications and Tulsa Community College. Information/tickets: Wizards Asylum Comics and Games, 250-2077, or Web site: www.myspace.com/tulsaminicon.

NATIVE TEE JUNIOR GOLF SUMMER PLAY DAYS at Cherokee Trails Golf Course, Mondays through Aug. 13. Free to children ages 6 to 17 with proof of Cherokee citizenship. Golfers between 6 and 12 must be accompanied by an adult. To register: Cherokee Trails Pro Golf Shop, 458-4294.

FUND-RAISING CALENDAR PHOTO CONTEST, entries postmarked by Sept. 1. Muskogee Parks and Recreation Department invites photos of the best Muskogee has to offer for a 2008 calendar: scenery, fun at the pools and water park, soccer and ball games, square dances, holidays, flowers, activities, events, etc. Judges will select 12 winners. Information: 684-6302.

WAY BACK WEDNESDAYS, 7:30 a.m. to 6 p.m. Wednesdays through August, Oklahoma City Zoo and Botanical Garden, 2101 N.E. 50th St. Admission: 75 cents per person; concessions for 75 cents each.

JUST BETWEEN FRIENDS SALE, 8 a.m. to 7 p.m. Aug. 10 and 11, noon to 6 p.m. Aug. 12, The Castle of Muskogee, 3400 Fern Mountain Road.

ANNUAL BULL BUCKOUT, 8 p.m. Aug. 10 and 11, Haskell All Sports Arena. Presented by Haskell 4-H and FFA Livestock Booster Club Inc. and Hiner Bucking Bulls. Admission: $6 adults; $5 for students K-12; pre-school children admitted free. Information: 482-5006 or 430-5214.

“CASABLANCA” movie showing, 1 and 7 p.m. Aug. 11, Roxy theater, 220 W. Okmulgee Ave. Hosted by Roxy Movie Club. Cost: $3. Information: roxymovies@gmail.com or 682-7326.

MUD RACES at Porter Mud Run, 6 p.m. Aug. 18. $7 adults, 10 and under admitted free. Concessions. Information: 486-4886.