Strewn Puns

I was over at a friend's house a couple of weeks ago when his dad stopped by. I've had this friend for twenty years, and his father knew me since I was a wee lad. All of the Christmas decorations are strewn through the neighborhood, including my friends neighbors house whose yard is filled with these 4 foot tall wrapped Christmas gifts adorned with colorful lights. My friend's dad looked out the window and saw the boxes. "Say, your neighbors left some pretty big presents out in the yard." My friend replies, "You should take 'em, save money on your. Christmas shopping." His dad instantly says, "They might be too big to fit in my car. Although, they do look pretty...light."