What I ought to have in my suitcase: a Verbena sachet from Castelbel. "With a high concentration of perfume, this fragrant sachet is manufactured with Portuguese cork and using a Castelbel exclusive technology that absorbs and releases the aroma in a slow and prolonged way. The satin ribbon is perfect to hang the sachet in the closet. However, it can also be used to fragrance suitcases, drawers or even your car." I can't seem to find them in the US, but they're €9 each on the Castelbel website.