clothes-fashios idioms

For example:
After the disappointment of not getting into her
preferred university, the teachers treated her with kid
gloves.
At the drop of a hat.
For example:
To make a decision or do something very quickly
without thinking about it.
"If he asked me out I would go at the drop of a hat."
Old hat
For example:
Not new or different.
"I've been doing this job for so long it's all old hat
now."
Take one's hat off to someone.
For example:
To admire or respect someone.
"He always works so hard on his English, you have
to take your hat off too him."
Keep something under your hat.
For example:
"You can trust me, I'll keep anything you tell me
under my hat."
To keep something you are told or know in strictest
confidence.
To talk / speak through your hat.
For example:
"He kept telling everyone what to do, but he was
speaking through his hat, as he didn't have a clue
and things just kept getting worse."
To talk nonsense; especially on a subject that one
professes to be knowledgeable about but in fact is
ignorant of.