Have you ever ignored a small problem that became expensive later?

[Ja sa bong]

From my experience with using e-bikes for a while, I've learned it's usually the little things that end up costing the most if they're ignored because I have paid for that mistake once. Since then, once I noticed minor issues or wired sounds, I'll find out what's the problem and fix it immediately before it gets worst.

Have you ever put off a minor repair and regretted it later?