What unlikely tools or products do you keep in your bike repair/restoration toolbox?
We all use things off-label when we discover they work really well for an unintended use. What do you all keep in your bike repair toolkit that wasn't intended for the way you use it?
I'll give an example:
Nail polish - I keep clear UV-resistant nail polish base coat as an all-purpose sealant for protecting decals and for coating rusty hardware after oxalic acid treatment and cleanup. It does a great job at preventing rust from re-forming on flaking chromed parts.