How do I prevent flat tires?

reduce number of flats get, first have determine has been causing problem. many punctures caused insufficient inflation. these pinch flats occur when inner tube compressed between tire , rim when bike hits bump. flats happen because tire worn tiny objects on road pierce tire , inner tube. defective rim tapes can cause flats. poor quality tires more flat prone. there other causes. figure out why having flat tires, correct problem
edit: many answers have suggested tire liners. can types of flats. if having pinch flats or have bad rim tape, won't @

are there tricks can bike tires prevent flats & make inner tubes last longer? i'm asking because seem have tire problems, thanks!

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