Could you use the giftcard online? There would be much better selection there. But there’d be shipping… How about if you found a book at their website that you wanted, and then asked them to order it for you from the store? They might do that for the same price…
Have fun shopping!
Oh, and as for what I’m reading, I just finished They Loved to Laugh, and I’m in the middle of Hornblower and the ‘Atropos’ and The Jerusalem Interlude. However, I received a mountain of books for Christmas, so I might read some of those before finishing the others.