Anything over 2-3 grams per day is mostly being flushed down your toilet.
If that doesn't bother you, ingest away.
No such thing as creatine dependance.
It is more important to take when the body is more 'accepting' than with sugars. Some carbs help with uptake because of the insulin spike. Tests have been done however, that show this effect is not all that it's cracked up to be. After workout with some carbs is good.