ART TIP- Table Raisers

I saw this tip for the first time at Mary Todd Beam's workshop last week.  I learned when you do many of the water media techniques, your surface needs to be on a flat surface and you really need to stand above it while you work to see what you are doing more clearly.  Of course, at table height that is really hard on your back.  Mary and some of the artists in the class had inexpensive (I paid $7.39 for the set of 4 at Kmart & Walmart carries them too) plastic risers normally used to raise a bed up so you can store boxes under it.  
They raise the table 6", making it kitchen counter-top height.  

My back says thank you to those who shared the tip.