In almost all of the books Harry has to deal with losing his rod and staff, either or both. Or his pistol.
Why doesn't he put his rod and/or pistol on a lanyard? It would be so easy. Or spells in place to return them to his hand? In Changes, Ebeneezer summons the Blackstaff from wherever, why can't Harry?
And finally, the art work on Jim's own page has Harry wearing a hat, but he never wears one in the stories. Were I he I would have a hat and I would enchant it and my boots in the same manner as his coat.
What say you?