Vaughn Simon wrote:
"TF" wrote in message
. ..

Any suggestions on preflight preparations that have worked for
others ? No coffee before the flight ? No liquids xxx hours before
leaving etc. etc. Sort of like preparing for an operations.

Dehydration gives no warning and can seriously degrade your pilot
skills just when you need them most. Drink normally and use piddle
packs to extend your range if you really don't want to land. Some
glider pilots make their own with freezer bags and the gel that is
found in some diapers. There are also products made to accommodate
the female anatomy.
On the other hand, having a desperate urge to pee and no place to
do it can also degrade your performance. Always have a plan. On my
little x-country flights, I always pack a bottle of water. It is
always nice to have the water should I happen to get thirsty, but In
a pinch that bottle could be very useful!
Vaughn

http://www.flyana.com/dehydration.html