Personally I really enjoy walking, think nothing of walking 3 miles / 5km or so to get somewhere and back, further sometimes, it’s not a waste of time to me, it’s the time where I do my best thinking. For this a good backpack is a good idea for shopping. I am fortunate to live somewhere where everything I need is within that radius and there are decent buses and trains for further trips so I’ve never had to drive, in some places a car is essential though, unfortunately, there’s nothing I can say to help there, other than to move but that’s not always possible either.