Rainy. Had to ride through 8 inches of salty flood water for about 100 feet. Then later got a flat from a glass shard. Replaced tube with spare & got filthy from road grime.

I decided to patch the punctured tube when I got to work only to find the glue in my patch kit was completely dried up. Great.

From now on, I'm carrying two spares & checking my patch kit more frequently.