Two languages at once

How do you schedule your day to study two languages? I'm trying to get into japanese and french, but google isn't being useful.
Have you tried it? How did you do it? Divide the day half and half? One day each? etc etc

The only way I really "study" languages is by reading random shit on the Internet in that language and trying to participate in discussion in broken Spanish/Italian/German.

So yeah, just alternate between the languages i guess