Been riding extensively since the early 1970s.
Covered 300,000+ miles so far.
Yup, you'll get flats eventually so learn to fix/cope with them.
For the past several years we have been using the Maxxis Re-Fuse tires on both our tandem and my road bike.
In 2011 had 1 flat (loosened patch)) in 5,200 miles.
In 2012 (til Dec. 27) had 4 flats (3 punctures, 1 leaky patch) in 5,200 miles.
Our Re-Fuse tires are 700x25s, Aramid (kevlar) protection and folding bead.
Carry a Topeak Mt.Morph pump on tandem and Quicker pump n single bike.
Works well for us!
Pedal on!
Rudy/zonatandem