How to prevent the enthusiastic showoff of datums and annotations when starting a CREO session?

The dreaded datum forest...

One option (preferred):

Use layers to organize datums in your models and save the models with the layers hidden. Remember to save the layers status when doing this.

If you do not have layers already you can create a layer definition file and read it into the existing parts to create the layers and include the datums to the layers using rules.

Another option:

Turn off datum display filters to remove the datums from display.