You can change the footprint of your bathroom (preferably when you have a wood floor rather than concrete). What I mean is maybe it would serve you well to move the toilet, as seen in this photo, so you can create recessed shelving to hold knickknacks etc. Often times moving things will allow you to have a more functional space, giving you more room maybe just to get in and out of the shower. This bathroom is an example of our client who was able to gain sliding doors and enough room in front of their shower to actually turn around.

bathroom remodeling by Advantage Home Contracting
bathroom remodeling by Advantage Home Contracting
bathroom remodeling by Advantage Home Contracting
bathroom remodeling by Advantage Home Contracting