I will have a rather formal event which I will attend in rather formal (and less comfortable) clothing. After that I will head directly to the airport, without having an opportunity to change.
If I want to change into something more comfy before my flight, where at the airport can I change my clothes?
My criteria are least hassle, avoiding public outcry or suspicions of security staff and avoiding charges.
I am aware that there are bathroom stalls but changing pants in there involves some acrobatics I'd rather avoid, and I'd also rather avoid sneaking into a dark corner at the end of the terminal or changing in front of other travelers.
Further I'm aware that lounges might have a solution to that but I have neither status nor a business class ticket and I'd rather avoid paying north of 20 EUR or USD for getting changed.
Ideally an answer would be valid/useful for airports all over the world but if you do need to narrow it down, I will be travelling from Frankfurt international airport (FRA).