C.
Hi S.. I have two suggestions for you. First, most local community centers have free preschool open gym time at least once per week, where kids can run around, play with balls, hulahoops, etc. We've been to the AV community center on Hayes Ave., and Rosemount center on Hwy 3.
Also, most local business will do free tours (and many times the kids get goodies/samples to take home). The ones we've been to that might be appropriate for your age group: Petco, Rainbow or Cub Foods, Krispy Kreme.
Hope this helps!