How to get motivated to workout daily?

Hire a trainer
Go with a friend.
Commit to a goal publicly.
Engage in the gym gossip.
Sign up for the membership.
Find a new love interest in your gym.
Get expensive shoes that you will regret not using.

Whatever works for you!

Until, it gets to a place where it becomes automatic. 

Which is when you would have cracked the motivation code.

Automaticity > Motivation to be motivated. Period.