In a pinch, the Clever Hook by Linden of Sweden will hang anything weighing up to 40 lbs. The design of the hook makes it pinch harder depending upon the weight of the object hanging from it.
And it eliminates the need for loops on clothing and towels. Instead, material is just placed in the "pincers" and is grabbed. We love this transparent model, happily showing off its smart mechanics.
The Clever Hook can be purchased here for $12 each.