"I still use it in my advertising."

Translation: Jeg bruger det stadig i min markedsføring.

[Boonoboo]

"Advertising" could also be translated as "reklamering"

[PippiDK]

Advertising is annoncering or reklamering. Markedsføring is marketing.

[atmosfeer]

Advertising could be reklame.

[Uthael]

What... Nobody cares that this has nothing to do with kitchens?

[Xneb]

That's because it's in the business section. There does seem to be a glitch going on at the moment where people are getting sentences in the wrong places though.

[Mexikoi]

Does stadig always come after the verb and object?

[dziallo]

Reklame is also correct. Markedsforing is marketing.