There are pedals that offer clipless on one side and flat on the other side. I wasn't a fan of them myself, because with the pair I had one-sided meant you had to look down and flip the pedal over every time you needed to get onto the pedal no matter which style you rode. I've read that higher quality versions are weight so one side is always up, but that still means flipping them over for the other side.

I personally went with flat pedals with pins and five ten shoes and stopped using clipless entirely. There's a lot of debate over whether clipless might be a hair faster, and in racing a hair is pretty important, but I'm mostly commuting and riding for fun so gaining 30 seconds won't even make up for the time I spent changing shoes (for commuting) or the just the general inconvenience.