Exhibitors at this weekend’s Lawrence Home Show understand that folks don’t necessarily have a bunch of money to spend these days.

That’s why they’re emphasizing the savings that homeowners can enjoy by spending a few dollars — OK, even a few hundred or few thousand — to boost energy efficiency right where they live.

“It’s a payback,” said Greg Rau, president of Apple Tree Homes Inc. and president of the Lawrence Home Builders Association, the event’s organizer. “Things don’t have to ‘cost.’ They can pay you back after a number of years.”

From energy-efficient lighting to recycled-cellulose insulation to geothermal heating systems, builders and vendors will be displaying their best products, services and methods for helping people make the most of what often are their largest investments: their homes.

Here’s the schedule for the Lawrence Home Show, at the Jayhawk Tennis Facility — formerly FirstServe Tennis Center — at 5200 Clinton Parkway:

• 5 p.m. to 8 p.m. today.

• 9 a.m. to 6 p.m. Saturday.

• 11 a.m. to 4 p.m. Sunday.

In all, 75 exhibitors are scheduled to take part, covering all aspects of a home’s construction, remodeling or maintenance.

“Everything that would go on a home, in a home or around a home is there,” Rau said, noting that “sustainability” would be a common theme at the show.

Admission is $5 for adults and free for children. Coupons are available at the association’s website, LHBA.net, and will be available Saturday on the front page of today’s Journal-World.