Cosy, as I'm sure you know, means comfortable and warm. It can also mean friendly, as in a cosy relationship.
Less favourably the word can be used to imply complacency. It probably is a good plan to leave the cosiness of the easy and familiar to try something different occasionally.
A cosy can be a canopied seat for two, or something intended to keep something else warm – usually a pot of tea or a boiled egg. My friend Anne Rainbow gave me this lovely tea cosy.
Cosy crime is a genre of writing, which although it may deal with terrible crimes avoids gore and gruesomely graphic details. I think this book qualifies – it's warm too.
The prize for this free to enter short story competition is a cosy pair of writing gloves. I've absolutely nothing against cash as a competition prize, but I have a soft spot for those which offer something more unusual. Perhaps that's because my first ever writing success (17 years ago!) earned me cake and books tokens.
What's the cosiest thing you can think of?