Save time by telling Duo to not ask for two-factor authentication for a week, similar to the "keep me logged in" or "remember this computer" options used on many websites.
"Remember me for 7 days" is a setting that gets saved in your browser's cookies. If you check the "Remember Me for 7 days" box, and use the same computer and browser, you won't have to verify your identity with Duo for 7 days. If you use a different computer or browser, or clear your cache and cookies, you will need to verify your identity with Duo.
The "Remember me" should only be used with a device you own or that is assigned only to you. Never use the feature on public or shared devices.