Anonymous wrote:I would do one checked in bag for stuff that won't get past TSA, a carry on for each person or if OP has a son and daughter, dad/son can share one carryon and daughter/mom can share another and backpacks for each. I'd also just stock up on sweat pants/yoga pants.
Sweatpants will be beastly hot, plus they are bulky so they take up a lot of room in luggage and take forever to dry if you are doing the "wash out in the sink/hang to dry" thing. I would instead aim for moisture wicking fabrics.
Pants that are specifically made for travel can be a very worthy investment, especially if you travel a lot. I have two pairs (one in black, one in grey) from REI, but I know Costco was selling some nice ones for only about $20 several weeks ago. Athleta also recently came out with some nice looking ones.
I would bring
3 bottoms (pants, skirts--most adults in Europe don't wear shorts, so I'd definitely have some non-shorts options for any nice dinners out)
3 tops that can coordinate with all the bottoms so you can mix and match
rain jacket
light sweater or jacket
socks and underwear
bathing suit
flip flops
flats
If you plan to visit Cathedrals/religious buildings and your skirts are above the knee or you are wearing tank tops, they will require you cover up. Some will provide some type of paper shawl for you to wear, but some will simply turn you away (even if you have waited in a long line! I saw it in Florence last summer where two teen girls wearing short shirts and spaghetti strapped tank tops were turned away after waiting about an hour!)
I always just bring a scarf with me so I can drape it around my shoulders (if I wearing a tank top) or around my waist (if my skirt is slightly short).
running shoes/athletic shoes