Remind me to work out if daily goal not achieved by 7:00 PM

Reminders is an application for iOS and OS X that allows you to set notifications for yourself and create to-do lists. Quickly sync and create reminders from voice assistants, email, task managers, and more — with Applets. This service requires the IFTTT app for iOS.
Belkin's Wemo and OSRAM Lightify connected lights let you schedule or dim your lighting from anywhere. The Wemo Lighting Channel supports Wemo Smart LED Bulbs and many OSRAM Lightify products like the Tunable White 60, Gardenspot Mini RGB, and Flex RGBW.