haven't seen this around lately, but to be able to lasso and tow things behind a cart or horse on land and use a knarr+ to move stuff on water like other boats.
the idea would be lasso a BSB, sailboat, statue along with other things and be able to command a cart to "drag" it along with a nice speed reduction but still be faster than spam pushing. i understand you can already move a ship on land, but to me it would be nice to dry dock boats by dragging them out of water for a little.
for ships it would be nice if a knarr or a caravel can anchor itself to another ship and drag it along unless its moored or no permissions to use.