[stylist] Emphasis

[The Crowd]

Hi folks, here I am again writing to my support group. LOL

So if we put thought in italics, then how do we emphasize something? 

For example, I want to make the word 'now' stand out in the following....

"If you are not pleased, madam, I am sure someone will return to collect your things."

 

"I want them collected, now. I insist you turn around this instant." 

CC is very infatic when she says now. I want it to red that way.

I don't want to over use exclaim, and I know at times authors single a word for emphasis. Any help would be great!

Thanks!
Atty