And it is true, unscented baby wipes are ideal for use as a wash cloth on long flights. Use them shortly before you land to get rid of the sweaty, slept-in-clothes feeling. You will feel even better if you can change into fresh cloths afterwards. I usually try to have a couple of fresh T-shirts in my hand luggage. This really makes a difference.
If you can get the wipes in a travel pack, then they don’t take up more space than a cell phone. For less than a buck they are one of my travel essentials.