"You can only subscribe to one course at a time". Beats me.

wingerlang · on March 1, 2015

Using gmail I guess you could fix that with the + thing. Might work with other services also, but I only use gmail.

gohighbrow · on Feb 28, 2015

We want you to form a good daily habit and not tire yourself out at the same time. Thus, you can subscribe to only one course at a time and take all the courses one by one.

mholt · on March 1, 2015

If you don't already, maybe you should explain this on the site. Maybe allow the user to sign up for 2 or 3 courses at a time if they really want to though? You could still warn them before they try to bite off more than they can chew...

jpd · on March 1, 2015

You could coalesce the other courses.

  Day1: Course1
  Day2: Course2
  Day3: Course3
  Day4: Course1
  etc,...