Most bike tires are thin for better performance (lighter, traction). Unfortunately that means they are prone to punctures and pinch flats.
While Tour de France racers don't mind getting multiple flats a week, for the average rider thin tires are not a good choice. Flat-resistant tires are better than ever.
I've been blown away by Michelin's Tracker with "Protek"
best tire ever
The tire provides great traction, corrosion resistance, and keeps sharp objects out.
Did I mention they have a reflective sidewall?
Change tires, not tubes.