When I was planning a trip to the UK B.E. (Before Ereading) I always spend a lot of time making lists of the books I wanted to buy, because they're a lot cheaper in the UK than in the Netherlands.
Now I panic if I have not only enough books on my Kindle but if I have the right ones. Up until I leave I keep adding books because you never know what you're in the mood for.
I also made sure I have money on my credit card to buy ebooks if necessary

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