Aside from the fact that packing takes time and energy, what even adds to the stress are the costs. So you can find ways to lessen the expense and still pack and move efficiently. For instance, you should first sort and segregate your things. Then you can give or better yet sell all unwanted items so you can raise money for the move. This would minimize the things you need to pack so you need less time to do so. You would even save money, too, since you would require less packing materials. And if you're going to hire a removals company to pack and transport for you, you also save money because there would be fewer things to pack and transport.
It's important that you use appropriate packing materials. However, you can also save money by buying secondhand boxes. Just make sure that you are still getting quality boxes. There are many available since people use new moving boxes once and resell them. You can even do the same after using the boxes as long as you don't damage the boxes after using them.
It's also important to label the boxes so the movers will know where to put them after unloading. Many use an alphanumeric code. You could use letters to designate the room and numbers to designate which boxes need to be opened first. Many use color stickers too.
Don't forget to pack all essentials in a separate box. You can pack cooking and eating utensils. Toiletries, a change of clothes and all other items needed on your first days of stay in your new home should also be included. This will make your stay there easier and convenient even if you have not unpacked yet.