I had to resort to small victories like reusing my cup or filling my bottle, not taking a straw or not taking sugar because it came in a sachet.
The plan is to be more confident so I can ask in restaurants that they bring me my drink without a straw (I am on the fence about frozen drinks...I may have to stop ordering them) or to get me cutlery that hasn´t been wrapped yet, but this will come with the added challenge with requiring that they understand my Spanish!