Here are some examples of how it might be used:
* "¿Qué quieres comer?" "Lo mismo que siempre, por favor." (What do you want to eat? The same as always, please.)
* "Siempre hace lo mismo que siempre." (He always does the same old thing.)
* "El restaurante es lo mismo que siempre." (The restaurant is the same as always.)
The phrase can have a slightly different nuance depending on the context. It can be used in a neutral way, simply stating a fact, or it can be used to express boredom, disappointment, or even frustration if the "same old thing" is not desirable.