Indicate that second layer signup is one time thing

[jlmao]

Maybe explicitly state that the second layer signup link is a one time thing and users wont have to do this every time? Maybe some people will think that this is the normal workflow for checking out and won't want to do it again

[jadesym]

Agreed. Maybe say something like we need your credit card for the first time, but every time after that we can automatically charge your card to make ordering faster