We taught our Lab/English Setter mix to dig in the sandbox when our boys were young. He was fairly soft, so it just took taking him to the sandbox when he started digging in the yard or flowers.
You can encourage her to dig in a sandbox by burying some treats in it. Start out with them...
Takoda's breeder told me to friend her on FB because she updates her page more then the "kennel" one. We're treated to pictures and/or videos and updates numerous times a day. :)
Caleb only got 1 capsule a day (1,000 mg). I think I was getting 150 per bottle. I can't remember now how much I paid for a bottle, but it wasn't all that much. Under $5.
I just bought the human Salmon Oil capsules at WalMart for Caleb. For some weird reason, nobody around here carries Salmon Oil capsules anymore. They all have fish oil or krill ones.