Yes, it sounds silly, but I have had friends go on a run the night before leaving for their trip and left their shoes at home or in a gym locker. My worst nightmare for sure. I was introduced to the Klitch Footwear Clip a few years ago and I love it. The Klitch is is shoe holder that can clip onto the outside of your gym/running bag, suitcase, etc. It is perfect for traveling and I always use mine on racecations.
If running multiple races next week, I recommended laying out and packing your race stuff by race. I layout my shirts, shorts, skirts, socks, etc for each race and then use drawstring bags to travel with. This makes hotel life a lot easier as everything I need for each race is already together, so I just grab my bag and I am ready to rock!