Three of them are currently advertising for helpers to get onboard.
This is, after all, the time of year when many people resolve to take on fresh challenges.
The Lindsey Lodge Hospice Shop is asking: "Have you got time to spare?
"Meet new friends. Help raise valuable funds for Lindsey Lodge Hospice.
"Behind the scenes volunteers needed."
People are also being asked to "give a shift" at the Oxfam Shop, also on Wrawby Street.
The Sue Ryder Shop, on Spring's Parade, says: "We want the incredible in you. Volunteer today."
Brigg Blog thinks our other charity shops would also welcome a helping hand.
So take your pick, if you have time to spare, and support the charity of your choice.
Pop in for a chat next time you are passing and find out more about volunteering in a good cause.