I need some advice on potato salad for my dad's 70th birthday. I'm supposed to bring a side dish, and this year it's potato salad to go with the burgers. I don't make it often, so I'm looking for favorite recipes or any little twists that really make it pop. Also, how do you keep mayo-based salads cold at an outdoor party? I want to make sure no one gets sick. Any tips or ideas would be appreciated. It's making me contemplate just grabbing some store-bought stuff.