Originally Posted by
pushmyredbutton
I do this all the time at SFO. I usually use Home Depot double-walled moving boxes to consolidate multiple items in. Never had any pushback from UA; even at 70lbs. It's quite the efficient way of moving personal items without displaced suitcases.
Be prepared for some odd looks from travelers at the baggage carousel, though.
You've never flown in the Pacific, have you? Cardboard boxes would be an improvement over the duct-taped coolers commonly used (and checked) in Hawaii, Guam, or Micronesia.