Using the extrude tool to add thickness (.049in) to the bottle to make it physically correct. Touch on the ability to use Cloth Surface as an option.
When adding thickness all the details on the outside are added to the inner side too. Using edge dissolve where it is needed to remove the extra geometry in order to allow the inner side of the object to be more realistic.
Adding a Subdivision Surface to the model for smoothing. We will take a look for areas that were affected by this in a bad way that we need to address
Turning on and off subdivision surface as we use loop cut to control smoothing more and make sure the details hold their form where needed.