That all depends on the type of smoker you have. Since most beginners don't start off with a big wood burning unit, I'll assume you have a small offset style or a bullet type smoker. In either case, the answer is the same.
You essentially want to use charcoal for heat and a little wood for flavoring. Charcoal is much more even burning than wood chunks.
The reason you soak the chips it so that they don't ignite, but smoke instead.
If you use lump charcoal, you don't really even need much in the form of wood for flavoring..just a few soaked chips(if any) here and there.
When adding charcoal, don't wait for the temp to drop to begin adding more charcoal...when I am using my offset, I found that adding a fewer chunks more often kept an even temp thru-out the session. It takes experimentation to see what your smoker takes to stay at the right temp and prevent the "thermal rollercoaster" that causes so much frustration and substandard Que.
Rock