Jan. 4 events:

TreeCycling Collection, before 6 a.m., regularly scheduled trash day, Lawrence.

Red Dog’s Dog Days workout, 6 a.m., Rock Chalk Sports Pavilion, 100 Rock Chalk Lane.

Holiday Happenings, 8:30 a.m.-3:30 p.m., Holcom Park Center, 2700 W. 27th St.

Books & Babies, 9:30-10 a.m. and 10:30-11 a.m., Lawrence Public Library Readers’ Theater, 707 Vermont St.

Teen Zone Expanded (grades 6-12), 2-5 p.m., Lawrence Public Library Teen Zone, 707 Vermont St.

Douglas County Commission meeting, 4 p.m., Douglas County Courthouse, 1100 Massachusetts St.

American Legion Bingo, doors open 4:30 p.m., first games 6:45 p.m., American Legion Post No. 14, 3408 W. Sixth St.

Yoga at Your Library, 5:30-6:30 p.m., Lawrence Public Library Auditorium, 707 Vermont St.

National Alliance on Mental Illness-Douglas County support group, 6-7 p.m., Plymouth Congregational Church, 925 Vermont St.

The Lawrence Apple Users’ Group, 7 p.m., Lawrence Public Library, 707 Vermont St.