A little extra leverage can be helpful! Sportsheets Single Locking Suction Foot Rest is a single locking suction foot rest that works great to provide better angles and also perfect for personal grooming in those hard to see areas. It works on most smooth surfaces and tiles measuring at least 4 inches (10.16cm).  It attaches easily with a flip lever. 

Pair it with the Sportsheets Dual Locking Suction Handle.