Instead of a headboard, place bookshelves to frame the bed. Add lights for late night reading. This would be great for a guest bedroom. Leave the shelves at the end of the bed empty for the guests to unpack their clothes. or kids room
a hinged full length mirror from IKEA (Stave mirror - that is x hides jewelry storage -- brilliant idea from The Girl on the Go! I would use a thin sheet of plywood cut to fit behind the mirror so I don't put so many holes in the wall.