Ever play when the sun is scalding your brain, and the humidity
threatens to cut off your breathing capacity (yet, you still
ventured on!! My kind of golfer)? Then, you reach for a towel to
wipe your face, and, oh man, it's the same towel you used to clean
your clubs with. Doesn't that soil in your hot, wet face feel
great!! Try this:

BEFORE you start your round, get a clean, wet towel. Use the clip
that normally is used to attach to your bag, and clip it to the top
of the cart above/beside your bag (hey, if you are walking, you are
out of luck). All carts have a roof top 'hole' of some variation
to clip your towel on. You now have a ready made face cloth that
you will not confuse with your 'club towel', and you can moisten as
you play. Simply throw a cup of water that you should be
drinking!! on it, or use the dispensers that are typically at every
second or third hole. It's free, clean, and handy. (For purists,
I have played at some pretty nice exclusive clubs, and I have seen
this several times. Point is, it really is not unbecoming)

This golf tip courtesy of Free-Golf-Tip.com

 Texas Golf 2009 / Dallas Morning News