Eat right! Make sure you get your daily dose of fruits and
veggies.

Take your vitamins and bump up your vitamin c.
Get plenty of exercise because exercise helps build your immune
system.

Walk for at least hour a day, go for a swim, take the stairs
instead of the elevator, etc.

Wash your hands often. If you can't wash them, keep a bottle
of antibacterial stuff around.

Get lots of fresh air. Open windows whenever possible.
Get plenty of rest.
Try to eliminate as much stress from your life as you can.

OR .... You can take the doctors office approach like I do.
Think about it, when you go for a shot, what do they do first?
Clean your arm with alcohol. Why? Because alcohol kills germs.
So......

I walk to the liquor store (exercise), I put lime in my Corona
(fruit), celery in my Bloody Mary (veggies), drink on the bar patio (fresh air), get drunk, tell jokes, and laugh (eliminate stress) and then pass out (rest). The way I see it, if you keep your alcohol levels up flu germs can't get you!!!! "WORKS FOR ME" !!!