For those who have ever thought about owning a car wash or who already do and want to see the latest industry trends, there's a trade show for you. The Heartland Carwash Association's Annual Product and Equipment Show will be held April 29 and 30 at The Meadows Events & Conference Center in Altoona. National equipment manufacturers, distributors and suppliers will showcase the latest products and services. The Urbandale-based trade association covers an eight-state region. Admission costs start at $25. For more details, call 515-224-6845 or visit  www.heartlandcarwash.org.