Lately, with my 3d printer to inspire me, I've been thinking of all sorts of household gadgets that could improve on the ones I have. This morning, I was thinking about how we never seem to bother replacing the toilet paper on the holder, we just tend to set a new roll vertically on top of the empty roll. But wait -- what if the toilet paper holder were vertical! We could just pull the old roll off and drop the new roll on! Brilliant! I rushed to google patent search, didn't immediately see anything. But then I noticed when I typed 'toilet paper holder v' google auto-completed vertical. Sure enough, you can get them everywhere, including on Amazon. This will not stop me from designing and printing some for our house, though.