Don't try to juggle half-a-dozen baskets of eggs - put all your eggs in one, safe, basket. I have one card that will handle a whole day's shooting. The only way that card is going to go through the laundry is if I accidentaly stick my camera, or my PC, in the washing machine.
Over 12 years of CF usage and I've never had one fail (well, one - but that was my fault because I removed it from a PDA while it was writing a whole bunch of data).

