Another question people ask about Passover is: "Can I store my leavened products in my garage or barn until after Passover?"
Only if you want to return your symbolic sin to your home. At our house, we don't wish to bring our symbolic sins back into the house after Passover, and so we simply start using up our bread and other leavened products, beginning approximately a month before Passover.
In our early years of Torah observance, we used to give our leavened products away to those who don't keep the biblical feasts. But then, one day it dawned on us that we were symbolically giving them our "sin".... Since then, we just make sure to use up all our leavened products before Passover arrives.