The cloak opened up opportunities for Harry that he’d never had before. Each morning he dressed, tucked one of his new books into his rucksack, threw his magic cloak over himself, and snuck out of Number Four. A few blocks away, he would duck into an alley and stuff the cloak into his rucksack. With the Dursleys not seeing him, they had no opportunity to assign him chores, and he was free to spend his days however he pleased. 