Queue Troops Before Every Battle

It is always a good idea to queue up the next troops you need before you click the 'Attack' button

The reason is that not only will they start being made while you are actually attacking, but also the whole time you are clicking the next button!

This can significantly decrease the amount of time before you can attack again, as clicking next to find a worthwhile battle and then the (up to) 3 minutes for the attack itself will add up to at least 5 minutes and often 10 minutes or more.