You can use it as a mosquito or insect repellent

Just make sure you keep a bowl of Coca-Cola near the place you want to sit and enjoy. and you will be golden. The insects will get attracted to the Cola and dare we say they may even drink it up. So, give your friends and your insects a good time when you throw a party on the outdoors. Even though no one has actually pinpointed how and why the thing happens, but many of them give the credit to the artificial acidic sweeteners found in the cola.