I just learned that as well about sweating when working out but in my case it is yard work. In the Florida heat a few minutes outside working and I am sweating bullets.
And your point of doing a little research before spending money is well taken. I still make that mistake and also allow salesmen to influence my decision rather than doing my own research and due diligence.
A personal rule might be something along the lines of “When spending any amount of money over X, do the research and due diligence first to insure all the rationale behind the decision is sound. then wait a week”.