It is ideal to pack by rooms to keep things organized and grouped together. But before you pack a certain room, make sure that you have sufficient packing materials. You should have a table where you can conveniently pack fragile items individually. Using a packing paper you should wrap fragile items over and over until all parts are covered and well cushioned. Of course, the boxes should be near the table too so you can put items easily too without wasting time. However, before boxing fragile items, tape the bottom of lengthwise and crosswise several times until the boxes are securely sealed. Put one to two inches of crumpled paper to provide enough cushion for the items at the bottom of the box.   As for other items, you could simply seal the box properly and put the item inside. Put the heavy items at the bottom though to prevent them from crushing the lighter items. Pack your things in a clockwise direction so you will not miss anything. The trick is to fill spaces with cushion such as crumpled paper, packing peanuts or even linen. This will help prevent the items from shifting inside the box during transit and help prevent damage as well. And after filling the box, don't forget to seal the top of the box well too to avoid tearing the box and dropping items.