During triathalon events, many competitors stash spare tubulars on the far end of the course. And then don't pick them after the race up because it is too much hassle. I picked up my multi-decade supply of tires through an Ironman cleanup crew.

Anyway, I like Conti Sprinters and Tufos. The tires are spiked with 20cc of Stan's sealant, allowing me to go months between flats. I assume the tires are pinpricked with a dozen holes before I get finally tired of the tire, or a big hunk of glass takes out the tire casing. Stan's deals with the little holes.