How to get into the writing mood?

Hey I was wondering how do most of the writers on this site get themselves into the writing mood. Because when ever I try to writes some stuff I'm either unmotivated or have no idea what to write next. So I ask you what get you into a writing mood?

Comments

[Tank Commander]

Its usually train of thought for me when its about war i try to do battles,each factions strengths and weakness,Writing in general i try to make something that i know well. It depends