I try to adhere to the dictum "never leave home without a shred sled", in the past even sometimes while hopping trains. However, I'm flying to Denver for 5 days over Xmas and it may be 50 and sunny, or like 15 with snow on the ground, so I'm probably not going to bring it this time. It just seems like all the times you DON'T bring your board, you find the cutty spot or sick park or get the good weather.