Yikes, I once almost cleared a strut just by looking. Do my fingers have better eyes than my face or what?

This is such a common problem now (like, it's everywhere). It feels like the whole idea of planning ahead is broken for anyone without a 9-to-5 job. Flight sales always seem to reward fixed schedules, but more and more jobs don't have that stability. One thing that might help is setting up price alerts for your known off-days, even if they shift around. Some travel sites let you search for whole months, which can show cheaper days you might not have thought of. Honestly, it's a sign of how little our systems care about flexible workers, and that's a bigger issue to fix.

Yeah, I read somewhere that good airflow in there helps stop mold too.

You start to wonder if your other tools will fail too, don't you? That kind of thing makes you second guess every piece of gear you own.

Permanent seems like a strong word for food coloring... it usually fades with sun and rain over time. Driveways are pretty tough and most spills don't last forever. Have you tried a good scrub or just waiting it out? Blue is a loud color for concrete but it's probably not there to stay... I've seen worse marks come clean with some simple effort.