CRYSTAL LAKE – Sage YMCA is hosting open houses for the organization’s preschool, which is enrolling students for the 2018-19 school year. Upcoming open house dates are from 6 to 7:30 p.m. Wednesday, 1 to 3 p.m. Sunday, 6 to 7:30 p.m. Jan. 25 and 10 to 11:30 a.m. Jan. 27.