Do it on the same airline and perhaps you'll confuse an FA and they'll pour you a glass of F champagne...

Do it on a different airline and thats just funny.

I have 4 LX F flights over this month and next. I'll keep one pair of PJs and donate the other 3 to charity. Something a little ironic about donating something to charity that says "swiss first" on it, but better than nothing!

I'll keep the one TG F pair i got last night, though not sure when I'll put the lilac on again--maybe for a domestic AA MR?

Of 4 folks on TG F BKK-SYD, I was the only one who changed. It seems more common on my LX F flights that people change into them. The LX F jammies are quite nice and sleek though.

JFK-GVA LX F was 8/8 full
ZRH-BKK LX F was 4/8 (all sitting at the windows)
BKK-SYD TG F was 4/8 (all sitting across the first row)