If you've had to do it, you already know. If it's in your future, you'll find out the hard way.

Simultaneously working a full-time job and going to school is a very difficult venture. It requires organisation, time-management and the ability to multi-task.

This article, from lifehack.org, gives pointers on how to cope with the increased workload.

Also, if you're going to pull it off, you'll need to become a prodigious note-taker. Here's an article, also from lifehack.org, on how to take notes like Thomas Edison.