Excel spreadsheet with a strong password. It is shared with my partner. We both admin it, and have the same rights over it. Most sites allow copy/paste of cred

Excel spreadsheet with a strong password. It is shared with my partner. We both admin it, and have the same rights over it. Most sites allow copy/paste of credentials and for password generation there's a macro in the workbook that generates nice strong ones. As it's Excel, its mostly cross platform so can be accessed from a anywhere, plus it's free to use.