ONLY A SISSY VOLUNTARILY TAKES A SINGLE:

1 Find a Sense of Balance

Golf bags regularly weigh upwards of 30 pounds. Carry one for a full round--roughly 5 miles on many courses--then do it again after lunch, and you'll blow out a shoulder pretty fast. Grant Cassell, a junior at the University of Colorado Boulder, who caddied at Cherry Hills Country Club in Englewood, Colo., preferred a two-bag approach. By lugging one bag on each side, the 5'7" student says, "You balance yourself out." (He would also earn double, up to $120 per round.)

2 Don't Bet the House

Caddies have a lot of down time between rounds or on rainy days, but smarter ones stick with movies and board games and steer clear of gambling to pass the time. Casual poker games at the Midlothian Country Club in Midlothian, Ill., quickly turned sour for young caddies, recalls Northwestern University junior Kathleen McAuliffe. They'd often make $40 caddying a round for members and then lose $100 in a single hand.

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