Appropriate container for storing/keeping chromic acid?
Chromic acid can well be stored in glass bottles with stopper/lid but should be kept away from any organic compounds. Chromic acid is a dangerous oxidising agent and incompatible with various organic compounds. Also, it should be well marked with proper label and hazard symbol to distinguish it from other mineral acids. It has a decent shelf life and can be kept for long period without decomposition if kept well.

Also make sure it remains separated from mineral acid. Chromic acid is known to form solution with sulfuric acid forming chromosulfuric acid which is ironically used to clean laboratory glasswares.

Chromic acid is not a glass etchant.