Primark Competition

I saw a competition on MSN win £3K to spend in Primark. Yep, three whole K.
How long would that take? Is there enough time in the world? How long would the queue be behind you in the Liverpool megastore?
Would it be physically possible to spend £3k in Primark and carry it home on the train? How big would your biceps be after that. How many hundreds of brown paper bags would you have after that?
What are the other hellish places to spend £3k in?