Duvets - how to insert them into the cover ?

Not the biggest life-consuming of questions, but. over the years, i have developed my own technique, but i hear others say "oh no try doing it this way" etc. all extremely well, but anyone on the planet, perhaps in hotels or bedding shops, must of found the ultimate method. any great notions as to accomplishing this tedious task ?
Answer
Cover inside out. grab the two top corners (i.e. the ones near the pillows) of the cover. then grasp two corners of the duvet, and shake the cover as far as possible down the duvet. finish pushing the duvet into place and snap the snaps.