Embracing the principle of "Use it Or Lose It", I try to sight-read something every day, however small. It might be a line of Bach, a Walking line, a rhythm study or a specific sight-reading exercise or some other random thing, preferrably that I don't already know and have not seen before. Sometimes the genre/style is obvious but often, with exercises, it isn't. My musical background is classical and involved a lot of formal training and sight-singing from a very early age - my first instinct, unless directed otherwise, is to play 1/8th notes 'straight'. I know other people who's background is jazz and their first instinct when sight-reading 1/8th notes is to play them with a swing/shuffle feel. What is your first instinct when faced with 1/8th notes in an unknown score - straight or swing? And does this instinct reflect your 'background'?