for backpacking i keep a large perscription pill bottle a quarter full of oil and i cut about a 6 inch square of rag put it in the bottle let it soak up then fill qarter full again the seal on a pill bottle will hold up better then any ziplock and can take a little more abuse in the field trust me nothing worse then getting to where you want to be and go to pull gear out and its covered in gun oil
larry
larry