Military items (Bebington CH63)

Hi, I'm interested In historic ww1 ww2 military items to research, always had an interest in it so thought I would start collecting and researching, any items really... buttons, hats, medals, ration books etc, anything connecting to it.
I'm not collecting to sell, I will donate to a museum or somewhere similar later down the line, but for now I would love to build a collection.
Thankyou for reading
Best wishes
Fred