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Anyway means "anyhow" or "in any case."

"Anyways" is a strictly colloquial expression, as ungrammatical in written English as "anyhows" because adverbs cannot be plural.

昨天第一次聽到anyways的講話,總覺得adv.應該不能加復數才對,回來之後真的還有這種口語上的用法.

http://web.uvic.ca/wguide/Pages/UsAnyway.html Avoid "Anyways" by Tina Blue April 2, 2005 This is going to be short and simple. Do not say or write "anyways"--not ever. The word is "anyway." The form "anyways" is found in some dialects in the United States, but it is not standard English, and it should never be used in any situation where you want to be considered reasonably well educated. That's all there is to it. http://grammartips.homestead.com/anyway.html