I thought of taxis but there are a number of disadvantages - when I said a ton of groceries I wasn´t exaggerating. I dont think a (Munich) taxi driver would be too pleased about loading the car up with so much shopping. I also would be nervous relying on taxi´s so completely. Sometimes you ring them and they come and sometimes they don´t. Sometimes there just aren´t any to be had. The do not want to take pre-bookings and there only seems to be one taxi telephone number. Munich is not a shining example of service industries at their best and being left waiting at the supermarket with a ton of groceries is not my idea of fun. You are right it would be cheaper and possible in theory, if I went shopping more often or hired a car occasionally for example but it would all be extra hassle that I could do without.

I did also think of a trailer. I once had a cheap one that was not very good and that may have put me off the idea but maybe if I had a good one then I could do it. That would be the most attractive option I think.