My brother has just started a delivery job. I borrowed him my tomtom one and it happily find the best route. for him.

Is there a satnav unit that allows more than one destination. he finds himself going back to places he could have dropped to earlier. Idealy he'd want to enter around 50 postcodes and let the satnav calculates the best route for the day?

Can anyone recommend one, that is if its possible.

your tomtom one already does this ..i have a similar job and i only came accross how to do it cos i was in the same boat as you...heres how...go to itinery planning (its on the second screen) press add then enter each of your destinations then press done...it works for me