So far, Linden has dropped off jelly beans at the RCMP detachment, taken cookies to the fire hall, and provided popcorn at a pediatric ward for their movie night.
Some of the ideas are his own, while others were thought up by Kroot, who said she wanted to teach her son the importance of giving back.
"He needs to learn that Christmas is more about giving than receiving," she told RebeccaZandbergen for CBC's Radio West.
Kroot said Linden often enjoys giving back.
"He actually spent his allowance one day on a gentleman who was hungry outside of MacDonalds," she said.
Linden, when asked why he wanted to do each of the tasks in the advent calendar, simply said, "Cause I wanted to."
Hear Linden Shelford and Tania Kroot on CBC Kelowna's Radio West by clicking the audio link: Prince George mother designs pay-it-forward advent calendar