I am another who just remembers loved ones through little things that used to belong to them, or simple memories.
My grandad once age me a little card pencil (a tiny metallic refillable pencil, used for writing down scores when playing cards). It is, I presume, totally worthless in monetary terms, but it is very precious to me.
While I do have a gold ring that used to be my grandma's, I remember her more every time I use kitchen utensils that I kept after she died.
I remember my dad whenever I see a beautiful sunrise or son set, or on certain walks - anything that he taught me to love - and sometimes make a point of walking a certain route when I want to think about him.
Then there is the memory imprinted on my mind of him blowing me a kiss as I left his house the week before he died. He'd never done that before in his life, so that picture is so very precious to me.