Just as a bit of background - I am usually the type of person who will leave a tip. I always tip my beautician, my hairdresser and the girl who washes my hair, in restaurants and the usual people at Christmas ( postman, bin men). However I have never thought to tip the Ocado driver, until my last delivery when there was that awkward 'deliberate pause' moment - exactly like on films - when it was obvious that I was meant to be tipping the guy. I've never noticed it on any other occasion but I'm panicking now as I've got a delivery due later and I don't know if I'm expected to tip them?