Originally Posted by
frappant
Can't you throw them inside? Should work through the suitcase material.
Or at worst, put it in an outer pocket?
Oh, I could, but the point is to put it somewhere not easily found so potential thieves don't detect it easily. If you don't account for thieves (which would have had a field day earlier this summer), then attaching it to anything would be fine. But might as well kill two birds with one stone.