Puncture repair outfits.

[Herbie]

They can be a tad heavy and I've seen reports on CC about them screwing up the valves.

I've had no bother...each to his own though

 

[SlowerThanASluggishSloth]

Lezyne self adhesive patches hold 120psi for ages, in my experience.

+1

 

[Booyaa]

Not had a problem with the Park Tools ones, but then I never had a problem with the glue yourself ones either.