Step 1: Deny everything. Deny everything. Deny the existence of the toddler in front of you. Deny the concept of sleep. Deny the idea that you're a human being.
Step 2: Develop a keen sense of smell, for the impending doom that is potty training.
Step 3: Find a good hiding spot, for when the toddler finds that one thing you swore you'd never mention.
And for the love of all things sane, read on.