Common brands as verbs

For brands that have become so entrenched in our culture that they are used like any other word, you can drop the capital letter when using the brand as a verb. Follow usual conventional formatting when referring to the brands as a noun.

How do you xerox a fish?
I don't know. Did you google it? Let me whatsapp my mom and ask.
I've never used WhatsApp. Is it better than Skype?