I'm in need of some potato salad ideas for my dad's 70th birthday party. He's serving burgers, and I want a side that goes well but I'm stuck on a good recipe. I don't usually make it, so any favorite recipes or twists you think would make it stand out would be awesome. Also, any tips on keeping mayo-based salads cold at an outdoor party would be great, too. Trying not to overthink it, but I'm tempted to just grab some store-bought. Thanks for any help!