Palmolive sticks are really inexpensive abroad but not in the States. Here is a pretty good deal for 6 sticks.
https://www.amazon.com/gp/product/B00CEMWBJU/ref=ox_sc_sfl_title_2?ie=UTF8&psc=1&smid=A3CPH7ECZ6J7RZ
https://www.amazon.com/gp/product/B00CEMWBJU/ref=ox_sc_sfl_title_2?ie=UTF8&psc=1&smid=A3CPH7ECZ6J7RZ