Use "pack rat" in a sentence

1. Fortunately, Elden was a pack rat and had a copy of each version that had been prepared by the firm to date

2. The loose items strapped to the old canvas pack rattled and clanged

3. A superlative pack rat, Louie has saved seemingly every artifact of his life, from the DO NOT DISTURB sign that he swiped from Jesse Owens in Berlin to the paper number that he wore as he shattered the interscholastic mile record in 1934