Here is my last bit of advice for people wanting to know Linux better. I consistently see people in the field doing their everyday jobs, and doing it the same way. Always be on the lookout on how to improve the way you perform your daily tasks. If you see a co-worker doing something that seems odd to you, don't just assume his way is wrong and yours is right. His process may be a whole lot better than yours. Learn from it. On the other hand, he may not have a better way, yours may be better. At this point, it's up to you to decide whether to attempt to share your ideas. I have found most people very resistant to this.
Do not let yourself get caught in the "Your way isn't better than mine, it's just different" argument. As I mentioned before, there is usually only one right way to perform a task, but most people just don't see this. Try to find it when you can, and share your ideas only if the person you are trying to help is receptive.