Excellent News!!!

Overnight, my FC levels dropped by about 1ppm, if that... and my CC level was 0.5! I think I'm done! Water looks very clear, all algae is dead and on the pool floor ready to be pumped to waste. Next move? What should I do next? Buy CYA? how much and how to add? You can point me to a resource too if there is one on the next steps.