We never forget those men who were with us from our start, and know in a way they will be with us until the end. After my dad died, I caught myself pondering some problem that I knew should have a logical solution, and then thinking of phoning him for his advice, when I would be suddenly surprized to realize that I couldn't. But I still think of him when I'm confronted with problems, and often the solutions are still there if I stop and listen closely to a voice inside.
Time will make this better, but you will never forget him.