ALL of you using notebooks! NO,
You (in very near future):
"Hi, Bank123 Ltd, I'd like to report a fraud, I've had money stolen from my account"
Bank: "Bla bla bla.... and have you written down or shared your security information anywhere?"
You: "Yes, they were all written down in a notebook..."
Bank: "Sorry, your fault mate, no refunds for you"
Versus:
You (in very near future):
"Hi, Bank123 Ltd, I'd like to report a fraud, I've had money stolen from my account"
Bank: "Bla bla bla.... and have you written down or shared your security information anywhere?"
You: "No, I have them stored on Lastpass as recommended by security experts and your bank"
Bank: "Oh great, we will refund you and sort this out"