I've been known to get some of the small 3M command hooks and an air freshener and hang my stuff in my knee hole of my desk. That was back when I had a desk with a huge knee hole, but it worked 90% of the time and no one ever said anything to me about smell or unsightliness.
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Bikes: 1996 Eddy Merckx Titanium EX, 1989/90 Colnago Super(issimo?) Piu(?), 1990 Concorde Aquila(hit by car while riding), others in build queue "when I get the time"