This may be a totally stupid question, but what size suitcase do you guys use when going to Conference? Do you use the bigger rolling one, or the smaller rolling carry-on? I ask because though this is my fifth conference, this is the first time I'm going with my clustermates (I usually go with my husband and a baby, but this time I'm leaving hubs and the kids at home.) We are driving, not flying, and the car owner said that I can pack whatever, but my Director said she only takes two small duffel bags, and I just don't see how the heck I'm going to pack that light. We're leaving here on Sunday, and will return Friday - so five days. I worry that all my stuff won't fit in a carry-on. Plus toiletries. OY VEY!! What would you do?