https://passwordsgenerator.net/ posted:

22. If there are WIFI routers in your home, then it's possible to know the passwords you typed( in your neighbor's house ) by detecting the gestures of your fingers and hands, since the WIFI signal they received will change when you move your fingers and hands. You can use an on-screen keyboard to type your passwords in such cases, it would be more secure if this virtual keyboard( or soft keyboard ) changes layouts every time.

27. Use at least 2 differnet phone numbers, do NOT tell others the phone number which you use to receive text messages of the verification codes.

35. If an online shopping site only allows to make payment with credit cards, then you should use a virtual credit card instead.