"No creams on my face for 10-20 years, unless I made them myself with edible ingredients."
I like this. Never put anything on your body that cannot be eaten. This is smart.
_____
"On my asia trip this christmas I had terrible water retention in my feet / legs.
This time, even longer flight, there was nothing."
This could depend also on where a female is, in her monthly cycle also, so do not neglect to consider it. Please excuse me if you have already considered it.