Put your login details in a secure place only you can access, such as a  password manager. This also makes it easy to keep track of all your different passwords.
Cadwch eich manylion mewngofnodi mewn man diogel, lle dim ond chi sy'n gallu cael mynediad atyn nhw, fel mewn rheolwr cyfrinair. Mae hyn hefyd yn ei gwneud hi'n hawdd cadw golwg ar eich holl gyfrineiriau gwahanol.