I often answer peoples questions on this website and they use what I write to answer school work questions.
as often as you use it. obviously!
how often do you use
As often as you need to.
use to be often but not that often anymore.
i often charge it once a week, but of course, it depends on how much you use it. if you use it for twenty four hours straight, then you will definitely need to charge it more often... :)
as often as possibe
I often provide example sentences.
Depends on how often you use it.
often use the internet as well as other media
Most often, I organize my room.
AND
Her brain