You posted as an example of sowing your sentences with commas:

>I think, that by doing so, I am able to convey some rhythm and emphasis to the written word.

I read the sentence aloud and found the placement of the first comma very jarring. Instead, I would both write and say:

I think that, by doing so, I am able to convey some rhythm and emphasis to the written word.

The use of the commas in this particular sentence is to set off a phrase that is not necessary to the basic sense of the sentence. In fact, the sentence is correct without any commas:

I think that by doing so I am able to convey some rhythm and emphasis to the written word.

Be wary of sewing too many commas into your sentences lest you get a reputation as a comma suturer.


TEd