15 minutes of your time

People tell me they have no time. Folks do not have enough with 24 hours a day... and they are right. 24 hours is nothing... But how about switching to a new angle? How about talking about minutes instead of hours? One day has 1440 minutes... that is time, isn't it?
And how about if I ask you to invest 15 minutes out of the 1440 every day? You still have 1425 left to do all you want. Not a bad deal at all.
There is a catch to this deal, of course. I ask you to invest 15 minutes a day of your attention to learn a language... but every day, without missing one day, Sundays, festivities, holidays, vacation included...
How about it? Deal?
I can promise you that you will learn and improve a lot if you invest 15 a day, every day, every day... EVERY day!