Okay, but it's not much more than what I said...
BUSINESSY TRIP (assume no dry or hotel cleaning):
- Underwear: As many as days of trip, +1, + 1 worn
- Bras: One fresh one every two or three days; bring the most comfortable and versatile ones you own
- Socks: One every day, +1 to travel as needed, also to sleep in because hotel carpet = yuck
- Tights/nylons: Err on the side of more if you wear them, they're small
- Nightgowns: One long one; gowns are better than PJs, as are one piece; if you're okay sleeping naked, go for it, hotels have robes you can throw on
- Shirts: As many as days of trip, +1 worn; pick shirts that will go under your sweaters or jackets, or ones that will layer under each other
- Sweaters: One long more-office-y one that can be dressed up, and one more flowy one that you can wrap yourself up in for travel. I like sweaters rather than wraps because you can style sweaters in more versatile ways, up or down. Longer black v-neck and crew-neck cardigans are your travelling friends because they dress up in a pinch.
- Jackets/Blazers: One, should match or complement bottoms
- Long coat or jacket: Longer jackets and coats are more versatile, IMO, than shorter ones because in a pinch you can button and cover up. Trench-style is perfect. Wear this on the plane with your cozy sweater.
- Pants: One pair to travel in, two you can attend meetings in and dress up -- unless you wear dresses or skirts, in which case, swap one pair out (even if the trip is only three days, because variety is nice and who knows if you can launder)
- Shoes: One pair on your feet, one pair in your bag.
- Workout: I like to work out while travelling, so I also bring sneakers and one or two sets of workout gear that I rinse after using, including a suit. if you're bringing sneakers, and not meeting anyone right off the plane, wear those and keep your nice shoes in the bag.
- Accessories and jewelry: Bring your plain workhorses, like small hoops or a simple necklace. A white scarf looks nice all the time, and can mix up looks.
Also, I NEVER check my luggage. Ever. All of the above fits in a European-sized overhead carryon case. Losing luggage is the worst.
Hope this helps...