Shops are just not set up to cater for those of us who have buggies (and i would also think wheel chair users). I had a tandem but though fine going through doors, it was a nightmare to turn around corners. people even used to jump in front of me in the queue as apparently it didnt look like i was in it!
even the smallest single buggy, i find is a nightmare round some shops. yes i too internet shop as i just cant be bothered with the hassle. am looking forward to the day when i dont have to take a buggy into town!