Actually, I've been thinking about doing this too. I believe it's a good practice to study 10 words a week - etymology, meaning, etc. It's also important to try to use these words in your daily life. If you cannot find how the word connects to your daily routine, try writing a few sentences using the word. I know that this task seems tedious after you get above 30 words, but it is REALLY worth it.
Good luck.