A Harsh Mistress

So there I was thinkin' about how to get everyone ready for movin' around Argul or whatever it's called, since I figure its gravity is different than ours, and I come up with a design for a device you slip onto your shoes, or hooves or whatever you're wearin' down there. Next thing I hear, the gravity on that planet? Completely the same as ours! Regardless, I figure I could get the prototype workin'. Mind givin' me a hand? Maybe when we're done you can like, sell 'em to kids or somethin'.