Fill boxes with the memories you want to keep
Get hold of some practical carry boxes (cardboard ones or even pretty ones to display) and sort all the things that have sentimental value to you into memory boxes. You might include gifts from your loved ones, your favourite old toys, holiday memories and old love letters (we never throw those away!).
Once your memories are sorted into boxes, you can store them easily in the attic, under your bed, on the top of your wardrobe and wherever you have dead space.