A texture of squiggles or footprints (feetprint?) should be easy to make tileable.
And textures, like the SketchUp sky on glass, are already repeatable.
[image: NSP9_trans6.png]
(You can see here, it repeats from left to right, and top to bottom)
I could superimpose two repeatable textures by finding a least common denominator, and adjusting the width one a but if necessary.
For instance, if I was imposing a Sky with a 5' repeat width onto a tile pattern with a 2' repeat width, I could either create a 10' texture - with 2 skies and 5 tiles already repeated, Or, when there is not an easy answer, I could stretch one ot the other - 3.g. stretch to sky to 6; and repeat 3 tiles per sky.