an activity reminder for reminding a person to engage in an activity associated with a particular brand includes a lens with indicia associated with the brand formed therein . the lens is mounted on a housing in front of a light source . the light source is activated by a signal from a timer circuit to illuminate the indicia after a selected interval of time . a reset button is mounted on the housing and connected to the timer to allow a user to reset the timer circuit and turn off the light source .