My one bit of advice I always give is to always wear foam ear plugs. Try it once and you'll be amazed at the difference of increased awareness you get.
I always find that the decrease of wind noise significantly decreases my sensory overload and allows me to focus so much better. I can hear every bit of road noise just fine too and the little that gets cut out is greatly compensated by my increased awareness.
I tend to re-use them 10+ times even though they are supposedly single use. I have a 2000 GSX-R 600 and while it warms up I always sit and do my gear donning routine with ear plugs first.