Is there something sharp stuck in the tyre that is puncturing the inner tubes (feel inside of tyre with fingertips). Don't think different inner tubes will help. Are you using a puncture resistant tyre ?
Change the tyre! Fit a Marathon Plus with a new tube, and unless you run over a big drawing pin as I did this week, you will wear the tyre out before you get a flat.
Repeated flats mean another problem: hedge clippings? Pinch flat from low tyre pressure? Glass on the road?
Or with single wall rims, check if nipples are wearing through due to a not good enough rim tape. Occasionally the valve hole gets a rough edge and makes a hole right there.
There was a hole in the tire, which I think was due to a lot of glass on the roads recently. I'll seek out some Marathon Plus ones. Thanks for the input