Since lots of people will be rotating passwords, this is probably a good time to set up Two-Factor Authentication (2FA) as well. I recommend Authy as your 2FA app, as it lets you set a backup password, which you can use to move your 2FA tokens between devices. For your critical services, keeping encrypted copies of your backup codes is a must.
Note: Dropbox also supports U2F for 2FA, which provides much better protection agains phishing.
https://blogs.dropbox.com/dropbox/2015/08/u2f-security-keys/