There must be hundreds of different kinds of flip flops but I like the cheap, basic Zorries that are one color with a strap the same color. They only cost about one buck and they last for a couple of months. I think the other flip flops are a big gamble when you buy them. Will they last? Will the strap break through the bottom? Will they let you slip on wet surfaces?
My flip flops are a staple of my wardrobe and I have some nice sandals, too. But I mostly just want my cheap flips flops when I get home and kick off my high heels for the day. They are my comfort item.