Saxa Table Salt is available to buy from Tesco for £1.05 in a 750g container.
Meanwhile, Morrisons Table Salt is available for just 25p.
Other suggestions from Mrs Hinch fans included using egg shells, a beer trap, coffee and checking for damp.
Marie Blundell said: “I had slugs in my previous home. Every morning in the dining room I had silver trails.
“Tried the salt method which didn’t solve it but it turns out I had damp in the floorboards underneath the window.
“Floor was ripped up and replaced with concrete screed and they never came back.”
