Whats your favourite notebook or pad

I've moved to a role where I can't always use the MS Notes app to record the data and have to go back to the pen. For years I'd take whatever rubbish was cheapest or in the supply cupboard but then I tried something a bit better like a Black n red.

So what's your favourite notebook/notepad?

Edit: As people are recommending tablets. I'm not able to use electronic devices due to sensitivity/security reasons