I know how you feel guys...my husband's father died just a few years ago. He told me about things that sometimes he can still feel his father's presence (ghost?). Like if hes having some difficulties, he will give him a sign that things are gonna be positive. And we do keep his stuff. We talked about his dad, and i can feel he misses him. And now we are married he treats my dad as his real father aswell. They were very close and i saw the father and son conversation that he was longing for. I told him even if hes not with us his memories will always stay in our mind, his works and his advices.