Leaning ladders are great impromptu storage units that also look decorative, like this one from Livet Hemma made from IVAR side units. It's a perfectly pretty solution for extra clothes lying around in the bedroom.
IKEA-hack: Inspiration till att göra om skåpet Ivar från IKEA
The IVAR system is, by design, modular and customizable — which makes it particularly fun to see all the ways it gets wrangled and reshaped by its buyers. It turns out there& a use for it in pretty much every room in the house.