Pretty much, that's it--if you overdose ammonia, to ensure you don't kill your bacteria, and at the very end. Some people will change about halfway through the nitrite phase too in order to restore buffers, but that's not strictly necessary unless the cycle goes for a long time (like, six weeks plus, same water the entire time).
100g planted community tank
75g planted goldfish tank
29g planted betta community tank
5g planted Betta tank