Old Dogs & New Tricks....

We have made it 10 years with Nellie without her being a beggar. (Well minus a brief time when UB lived with us that I consider Nellies "teen years"; I believe they shared a few meals...)

But my goodness, this has become an issue! She is under foot non-stop, follows Keaton around like she's wearing sausages. She's at my side while I'm cooking, basically stepping on my feet to get close enough to hope for a morsel to hit the ground.
Seriously, does anyone have any suggestions on how to "unteach" a dog a new trick?