For longer term storage, there are many self storage units around the metro area. Not cheap, but then neither is paying extra baggage fees and lugging around extra stuff not needed for another leg of your trip, as it sounds like Terry might be doing. For example, I found "Downtown Denver Self Storage" with units starting at $45 a month.

Lockers Denver Colorado 80231

Another way to conserve space yet provide full height storage.  Shelf width is necessarily reduced. Equipment: Hat/book shelf 18″ down, coat hooks (rod in 19″ depth), number plates and padlock attachment. Widths Depths 15″ 15″ 18″ 18″ 18″ 21″ Frame Height without legs: 60″-72″. Sizes in blue are subject to ordering restrictions. Most sizes also […] Lockers Denver Colorado