As the TikTok video below shows, even 18-year-olds still get excited over seeing a smiley face on their Costco receipt. And, hey, we can’t blame ’em! In case you were wondering, Costco isn’t ...

Melissa G. Moore, the daughter of "Happy Face" serial killer Keith Jesperson, previously wrote a memoir, "Shattered Silence," about her tumultuous upbringing ...