I prefer to keep spare tubes, a patch kit and a good pump with me all the time. I had a badluck streak of 10-12 flats in the same month last year so now I'm very good and very quick to replace/patch a tube. I didn't get any flats since then anyway.

Did you check on the tube where the punctures are? I discovered last year that I was pinching the tube between the tire and rim when I was mounting the tire back on the rim, weakening the tube or creating slowleaks, I was causing most of my flats.