This will be the shortest out of town non-car trip I can ever recall making. I almost didn't need to pack a suitcase, since I could get by with the clothes I'm wearing and one extra shirt, sundries in a messenger bag, plus camera in it's own case. But I'm splurging a little and will bring a standard case that fits in the overhead compartment; no checking bags for me!
The most annoying thing is having to bring a winter coat to DC's comparatively mild (high in the 50s) weekend, since it will be cold tomorrow and colder on Sunday. Ah well.
Pictures upon return.