Strong c-algebrability of strong Sierpi\'nski-Zygmund, smooth nowhere analytic and other sets of functions

We present a useful technique of proving strong $\mathfrak{c}$-algebrability. As an outcome we obtain the strong $\mathfrak{c}$-algebrability of the following sets of functions: strong Sierpi'nski-Zygmund, nowhere H"older, Bruckner-Garg, nowhere monotone differentiable, a certain Baire class, smooth and nowhere analytic functions.