I use vim and am always reaching for 'K' (simplified version is it shows docs for whatever is under the cursor) first then 'man keyword' in another terminal and

I use vim and am always reaching for 'K' (simplified version is it shows docs for whatever is under the cursor) first then 'man keyword' in another terminal and as a last resort the browser. Online docs gets in the way if I'm working on something and just want quick info. Being able to always read it even without a connection is useful as well.