Per, yes back in the day, I remember when playing with playing with Lego involved dumping a big box on the floor with all the random bits and pieces and no instruction manuals other than the ones that you made up in your head! Ah the good old days.
I had several big bins of Lego back in the early 70'stages, drove my parents crazy. Won a local hobby store Lego competition with a 26 inch model of Queen Elizabeth - not to scale. But great fun!