The heroine always has long open hair,long,manicured nails and high heels and never changes this fact.She is always a slightly helpless idiot.She might live on her own and be an exceptional professor of something,but as soon as the hero turns up,her brains go mush.She will be able to carry home four huge shopping bags without batting an eyelid,but as soon as HE turns up she can´t even pull out her beheeled foot from under a bookshelf without breaking it.
Every normal woman would first break off the heels and tie up her hair when in a dangerous situation,but our heroine never does.Yes,she trips over roots,but she never breaks a heel.She might even fall over,but she will still hang on to the bloody things.
She will invariably wear a very short,tight skirt even when she´s a gardener or a forensic,but will be able to climb ladders,ride horses or swim in it without it ever sliding up or tearing.She might not be able to see a thing,but she cannot master the simplest hair-and-pencil do,whatever else she might be doing.She will never tear a nail,and,when saved,no matter what happened to her,her hair,make-up and nails will instantly be perfect again.She never has to go to the loo,not even if it´s freezing cold.She just goes to powder her nose.
(Lara Croft does not count
It´s still magic even if you know how it´s done.