Need, must have and can't live without

It seems that one just needs to have this and that.. But what do you really need to have and what do you just want to have? One needs to eat, sleep, have clothing and a house rest and live in. That's it, really. So how much money do you really need for the basic needs.
I firmly believe that one shouldn't save on nutrition. Meaning that one should buy nutritious food even if it costs a little more than the cheapest junk food. But on the other hand it is very easy to save on food, if you just leave out all the junk such as microwave dinners, candy, soda and other beverages and so on. Don't go for the most quantity on your money either, but try to get as much nutrition on your money as you can. That is fresh veggies and fruits and unprocessed foods, and go for the organic foods when ever they are available. This way you will  have more energy and you will save on health care, as well as on beauty products ;)
We all need clothing to stay warm and to function in the society. Hanging around the house doesn't require much for clothing, but when working or attending hobbies one needs to fit in and to be presentable. Instead of shopping tons of trendy clothing, go for the basics and spend on quality. When you have a food quality basic wardrobe it's easy to change the look with accessories and by various combinations of the basic clothing. Sure if there's some occasion that you need new clothing for and you know you won't be using the clothing again, then go for the cheap stuff.   But in general, don't save on the basics, and again don't go for the quantity but for the quality.
 What is the purpose on your home? If you need to use your home for business purposes, then the requirements for the housing are different. But you don't need to have meetings with your customers or business associates  at your home, then consider what your needs for housing are. Do you have a spare room or a guest room? If you do, you should calculate the cost of that extra space. How much are you paying for square  meter or square feet? How much do you use the extra space? Let's say for simplicity that your rent is 100 per month and you have a guest room that is one quarter of your apartment. Then you're paying 250 for the spare room. If this room is just for your friends to stay over a couple of times a year, then consider if it's worth to pay for and also to have that extra space to decorate, heat, clean and so on. Saving 250 a month would be 3000 a year! Plus the savings on heating and cleaning and so on..
Ok, so these are the only things you really need, but of course life is more complicated than that and we all need to relax and to have fun also. For some the relaxation is talking a walk in the park, and for others it is something different. But what ever it is you like to do, I recommend you  take out your calculator and see how much you are spending on your hobbies and if it is worth it. Calculate the costs for a month, for a year and for 10 years to get the full picture. Only you can tell how much you need to spend in order to live a full and happy life,