I nearly always wear a sandalwood mala bracelet. Certainly I wear it when I meditate, but I wear it the rest of the time to remind myself to be mindful. To be compassionate. To treat others as I would want to be treated myself.
Sandalwood is a gently fragrant wood and the smell, also, triggers those kinds of restful emotions. Sandalwood is one of those fragrances which can last a long while. Just rub or handle the beads to draw the scent out of it again. Note that it’s not an overpowering scent, like you might get from burning incense. It’s fairly subtle – but it’s there when you bring your hands to your face.
Some people use a mala bracelet to recite prayers or meditations one after another. They count each recital with a bead. Other people use the bracelet as a whole as a reminder token.