New Departure Date

I got a call from the airline today saying my flight into Florence was cancelled so now i am leaving on the 29th of July and getting in on the 30th which gives me one less night in Florence but i think i will be ok. So im getting pretty anxious although i havent yet finished packing....anything. I have to budget my space between artsuppleies clothing and other necessities. I dont kno if i need to bring shampoo and conditioner or if i can just get them in Italy but i dont want to risk it. So now i just need to fit in all my art supplies and then put clothes on top and packin will be done.