ANSWER:

You should limit it to bismillah for wudhu and eating and drinking etc. 

Sheikh I want to ask, BismAllah Ar-Rahman Ar-Raheem should only be used when we begin the recitation of the Quran or The introduction for books, letters or other correspondences OR can it be used in other situations like before wudhu or before eating or should we just say BismAllah before wudhu or eating etc?