I learn from experience. I now know for sure that you cannot make a hard boiled egg in the microwave.
I also now know that once I've promptly cleaned up the gallon of spilled milk I should also immediately wash the rags. 3 wash/dry cycles later and every rag and bib I own is still saturated with the stench of rotten milk.
The only beautiful thing is that my husband is monitoring the smell project as though it were his mistake, re-doing the laundry over and over without complaint. And that - is sort of beautiful.