Every Wednesday, all summer long, is letting families enter for free. You must have at least three people and have at least one adult and one child. BYOS (Bring Your Own Skates) for an evening of free fun. Or you can rent skates for $4. Sparkles also has an arcade, a snack bar and free wi-fi for those deciding to sit on the sidelines instead.
(Editor's Note: Another low cost tip for summer fun from Lawrenceville Patch)