keyboard for business travel

[nicebob]

Hello, i am more than half a week on business travel, but i want to work my piano (the famous 20 minutes a day?). i guess i am not the onlyone...
Most of the time i dont take the plane and i may let the keyboard at the hotel i think. do you have any model to recommand?  i would like not to take a 88 keys but a smaler one/
tks for your answers