Woodlands, 56 km. My front derailleur shifter has been spongy and I've wanted to change it. Still, that would mean downtime and money. As I cycle, I fiddle with the barrel adjuster. Performance markedly improves. Which reminds me of a photo of an old couple and its caption: we come from a generation where if something is broken we fix it instead of throwing it away.
The adjustment came about as, after changing the bottom bracket, the chain ground against metal when I shift gears. The front derailleur hasn't shifted, perhaps the new spacers for the bottom bracket are thicker than the slimmed-by-age old spacers, and changed the chain alignment. Fixing one problem (the chain) might have solved another problem (spongy shifter).
So, I've saved money, time and a wee bit of the Earth. I wonder if the repair will last. Wouldn't that be nice: instead of one problem leading to another, one solution led to another.