I do most of my shopping on the Interent because it's generally alot cheaper than the high street. I do like the option of actually being able to walk into a shop to kick off if whatever I buy breaks.
I would be pretty reluctant to buy quite alot of things from Comet because working on the customer service desk I know all of the returns policies and have to say that most of them are shit!
The majority of the xmas temps in there dont know what they're talking about. I was talking to one customer yesterday who had been convinced by one of the sales people to connect his TV and Sky HD box using component cables which give the best possible picture and sound quality, until I managed to convince the salesman that component RGB cables dont include the sound.