A USB lighter can help you make sure you never have to ask to borrow a lighter ever again. USB lighters are safe and environmental friendly. Lithium-ion batteries power most of them and you can easily ignite them by pulling down an on/off button.
The lighters do not require any gas and some of models available on the market also come with an optional USB Flash memory. USB lighters are safe to take on airplanes, so you will not have to ditch your lighters before security again.