DIY - this could be done with Command Hooks and some baskets. More storage without putting holes in the walls!
30 Creative and Practical DIY Bathroom Storage Ideas | Daily source for inspiration and fresh ideas on Architecture, Art and Design
Instead of a towel rack...use elastic band with hooks. Its out of the way until you are ready to travel, pull it around bottles when its time to move!
The Large Towel Command™ Hook allows you to keep towels and robes off the floor, and no holes in the walls if someone hangs on them like a monkey!
Command™ Shower Corner Caddy is a great space saver - need for kids bath to keep soap with in their reach