Household Items
Household items which contain PFAS can expose you, especially if you inhale them. Major household sources are cleaning products and cosmetics. You can Google whether your products contain PFAS: many manufacturers and independent testers can inform you. (source)
Old ski waxes contained PFAS, and you should avoid these. They can expose you, and also contaminate the snow. There are newer PFAS-free options. (source)
Finally, some old versions of waterproof sprays, like Scotchgard, contain pure PFAS. You can tell, if the label contains the phrase “fluorinated polymers.” (source)