Store outside the house. Even when you have complied with every item in this Home Fire Safety Checklist, you still need to have a plan for early warning and escape in case a fire does occur. Many fire deaths and fire injuries are actually caused by smoke and gases. Victims inhale smoke and poisonous gases that rise ahead of the flames. Survival depends on being warned as early as possible and having an escape plan.
Smoke detectors are inexpensive and are required by law in many localities.
Check local codes and regulations before you buy your smoke detector because some codes require specific types of detectors. They provide an early warning which is critical because the longer the delay, the deadlier the consequences. As a minimum detectors should be located near bedrooms and one on every floor. Smoke detectors can save lives, but only if properly installed and maintained. Consider relocating the detector rather than disconnecting it if it is subject to nuisance alarms, e.g. from cooking.