Have difficulties remembering something (Important information)

Where do you spend most of your time or what places you occupy regularly (your car, your kitchen table, your armchair, etc.)? Think of such place and mentally put what you need to remember to some kind of spot there. So, for example, once you see your favourite armchair you will remember that you need to call your friend.

Any information needs some time of your focused attention to be remembered. So just don't hurry and be concentrated on things and actions that you need to remember. It works for everything: for names and faces of people, for new words, for where you put your keys when you come home, for remembering that you turned off the gas before leaving, etc.

If your memory gives you really hard times, start a daily journal where you will write everything you did today and all things that you need to remember. Reread it often. After some time of using such technique you will train your memory enough and won't need the journal for remembering things.

Pair something you need to remember with a really odd picture in your head. For example, if you need to take your dog for a walk and to call your boss, imagine your boss carrying a huge retro phone in his hand and let your dog be on his head. Or if you need to buy in a store fish, milk and bread, imagine that fish is eating your bread while swimming in a milk river. The odder images are, the better you will remember them.

This way you will use 3 perception channels at once: you will write it, you will read it and you will say it. Don't forget to be concentrated as well, it will give you more chances to remember the information.

Make notes to yourself and put them to places that catch your eye often. Those can be walls in your room, fridge, etc. You will see the information from your notes often, so you won't forget it.

Think of something you have to remember and combine it with some physical movement, like finger snap, for example. It is easier to remember information if it's associated with something else. 

There are not so many books about human's memory and ways of improving it. But here are three really good ones: Moonwalking with Einstein by Joshua Foer, The Memory Book by Harry Korayne and Jerry Lucas, Unlimited Memory by Kevin Horsley. Choose the best one for you and read it, or even read them all, you can find a lot of helpful tricks and advices in each of them.

Make photos of things you don't want to forget with your mobile phone or another device that you always have with yourself. You can make a picture of your child's school timetable or of the closed door after leaving home, or where you put your purse, etc. It's easier to remember things if you combine them with some actions and even if you forget them you can always find pictures on your device.

Explain something you need to remember to other people. It works better if you understand the information good.

If someone says to you something important repeat it outloud, this way there will be more chances that you won't forget it.

It's the oldest known mnemonic strategy which makes a visual filing system in your mind. With it you can memorize and recall a lot of things in an exact order. Read more about it here.