follow these instructions daily (since it's winter, you can do this early in the morning for an added bonus, bring some buddies to increase production)
>fill up your bladder
>piss on the door handles (front door, car door, back door, whatever you want)

winter early in the morning will freeze your piss and make it sit there until around the time someone leaves for work

why?

I find this amusing. I have no idea why, though.