carried home 18 mi., one town to the next, a complete set of curtains for the living room -- strapped the rods to the top tube, bagged the curtains, tied them together & hung 'em over the stem.
carried home a training wheel bike for my stepson, 7+ mi. after work, laid across my h-bar, pinkies hooked on spokes. set it up for him to ride w/ training wheels set too low, back wheel was off the ground (on purpose), & rolled off the porch laughing at the bewildered look on m'boy's face as he pedaled nowhere fast.
have a child trailer (open, rear-facing), and hauled two family bikes home strapped atop it, and hand-guided another as i rode.