First Flat in Two Years

I have this amazing flat-preventing slime in my bicycle tires, and today - after riding over a staple - lost air for the first time since I got my new Giant Cypress two years ago. Another cyclist who takes the same 8-km route gets at least one flat per month, so I'd say the slime has saved me a lot of inconvenience, not to mention patches and inner tubes. I checked out their website and found that the slime lasts two years, which in my case is uncannily precise - to within a few days! So for today that was the main excitement of my daily commute, instead of the occasional rude car driver who thinks I'm supposed to be on the sidewalk or the willow branches which reach out and slap me. So after preparing my bike for the winter season with new flashers and batteries, I'll need to be re-sliming my tires as well!