One of the most frustrating things about COVID-19 (you know, other than the disease itself) is the fact that we can't use reusables such as mugs, grocery bags and bulk containers. This is having a terrible impact on the waste reduction movement. We are trying to protect ourselves from a current crisis, only to be contributing to a possibly even more threatening crisis in the future.
Do your best with what you have available. I may not be eating a lot of chocolate or drinking a lot of lattes right now, but self-care is important, however that looks to you! (I have spent a lot more time exercising. Hmmm... maybe this has been good for me...)