Utility Belt: Batman keeps most of his personal field equipment in his iconic yellow utility belt. Over the years, it has produced plastic explosives, nerve toxins, batarangs, smoke bombs, a fingerprint kit, a cutting tool, a grappling line-launcher, and a re-breather. Superman also entrusted Batman with a ring made of Kryptonite, should the Man of Steel ever need to be reined in (because of mind-control by a super-villain, etc.).
Harley Quinn: Best known as "The Joker's Girlfriend", Harley has had occasional romantic encounters with Batman, most notably her kiss with him in the episode Harley's Holiday from Batman: The Animated Series. Recently, in the The New 52, there have been a couple of stories in which Harley became infatuated either with Bruce Wayne or Batman. These attractions appear to be entirely one-sided and Batman has shown no signs of attraction towards Harley.
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