Sandbox to me has always meant lots of improvising, which I'm relatively good at. It also requires impecable record keeping, which I tend to lag at
You will need to keep pretty accurate notes, because even the encounters or plot points you may have pre-planned will require fleshing out in the midst of the moment... players will remember that one tidbit that you threw out and forgot to write down.
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Erik
"Because the gods say so, and don't like pointy eared types with curly-toed shoes, squat miners with big beards, hairy-footed midgets, etc." - EGG
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