The first step is to isolate why you're getting so many punctures.
Figure out where on the tire/rim the punctures are occurring. Mount your tires so the logo aligns with the valve, it makes locating the spot easier.
Where the puncture is says a lot about what caused it. Holes on the outside of the tube are road debris or something tire caused. Side edges are likely pinch flats or improper installation. Inner side (valve side) are probably a sharp spot due to a spoke poking through the rim tape.
If you really are getting that many flats you need armored tires, or look at going tubeless (which will help with tiny punctures).
Given your precautions, such as liners, I'm wagering that there's something wrong with your wheel causing flats. I've got flats from goat heads where the thorn went straight through a MTB knobby, no tube can possibly stop than.
Last edited by gsa103; 03-08-14 at 02:58 PM.