I haven't made any firm decisions, but I'm trying to explore my options.
Things are bad at work in terms of the way senior management are treating all staff, not just me. If one day I've had enough and want to walk out of the door, and hand them a cheque for my last three months' salary (gross plus employer's NI - everything they've paid out in my name) do they have to accept it and let me go, or legally can they insist I actually work my notice period?