Dovo makes an excellent two sided linen leather travel strop, it is 1.75 in x 18 in I think, but rolls up into a 2 inch roll. Perfect for inside a sock or shoe. They sell as low as $40.
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Pick up a 4x1/4 in Translucent slip, lap it, burnish one side and your good. Store in a cellphone case or small plastic box. Take a chunk of Chrome Ox in a plastic container, you can rub it on any clean piece of cardboard.
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A small tub, (2.5in) of Cella in the red plastic case, with screw on lid, travels well and is good soap.
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