Charles County Chamber of Commerce will hold its Monthly Perk breakfast from 8:30 to 10 a.m. July 12 at the Hilton Garden Inn at 10385 O’Donnell Place in Waldorf.

Cost is $10 for members and $20 for nonmembers if registered in advance. At the door, it will be $15 for members and $25 for nonmembers.

The chamber also will hold a mixer from 5:30 to 7:30 p.m. July 12 at Raley’s Home Furnishings at 11800 Holly Lane in Waldorf.

Cost is $15 for members, $25 for nonmembers.

Call 301-932-6500 to register for either event.