Use one or more keywords with the addition of capital letters, symbols, and numbers if you plan a password to enter regularly. It can also be letter combinations that you remember in a specific way. Any simple abbreviation will be unbearable for you in case of brute force, for example, X1&pS4 (Xbox One $ Play Station 4). If there is no need to remember the password, or you trust your data to the browser, use the random password generation service and forget about the problem forever.