Here's the way my family does it.

Macaroni Salad
1 lb. elbows ,cooked &drained
Green olives,sliced
Sweet pickles, sliced
1 can tuna, drained
mayo,salt& pepper to taste.
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Potato salad
2lb red potatoes, cubed,cooked & cooled
4 hard boiled eggs,chopped
couple sweet pickles, sliced
2 grn onion, sliced
1c. mayo
1/4 c.miracle whip
1/2 tsp. salt
1/8 tsp. pepper
mayo,mustard s&p to taste.
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Roasted potato salad
4 slices bacon, cooked. reserve some grease
2lbs potatoes,cube & lightly coat with some bacon grease. Roast in 9x 13pan or cookie sheet at 425 for 30 min or until golden. Sprinkle lightly with salt.cool.
mix together & add~
2/3 c. mayo
1/3 c. sour cream
1T Dijon mustard
2 green onions,sliced thin
3 hard boiled eggs chopped
s&p to taste