From work to the gym to happy hour, we’ve got enough stuff to haul around without packing an arsenal of skin-care products. ClickR’s new Acne Spot Serum is a potent on-the-spot treatment in a well-designed package. The salicylic acid gel (2 percent) is pushed up through the tip with a twist of the tube, so you can target problem spots with a fine brush. The serum works under makeup to unclog pores and tone down redness during the day without making your skin flake off. And the pen-size tube can be stowed in even the smallest bags for skin emergencies.