What are the most useful curl opts you use regularly? or How do you optimize your requests with curl

`-F` for multipart uploads! Like `-F "file=@pic.jpg"` for testing file endpoints.

And `-b cookies.txt` when I need session persistence. Old-school but works.

For JSON, `-H "Content-Type: application/json"` is a must, but you knew that.

Tool rec: `insomnia.rest` for when curl opts feel too raw. GUI with curl export—best of both worlds.