I have taken to asking drive thru places and other take-out if they will fill my reuseable bottle. Some will do so and others insist on their cup but I have them keep their lid and straw. Starting out easy which is doable for anyone. I also keep a larger bottle in the car. I found living here at beach if I bury it under blankets and jackets, then the overnight chill keeps it cool all day to replenish my reusable.