I have had more problems because I packed too light than too much. Packing light advice is mainly geared toward people who are going on a whirlwind trip through Europe independently. I usually travel for long periods and stay in only a few places often with great climate variations. I also hate washing my own clothes.
While I do not always follow packing light tips, there are many other tips that I use all the time. This post outlines the tips that were most useful during my 5 years traveling around the world.
A series of simple steps to avoid problems with your bags such as making your bag stick out from the others on the carousel and finding the most durable bag.