There you are, warping your next band.  But where to keep the multiple balls of different colored yarns for each time you tie in a different yarn color?  Hold in your hand?  Like most people, in desperation you simply drop it on the floor, hopefully in a container.  But for every color change, bend down, bring up the old ball, tie on a new color ... again bend down and put the new color on the floor.  What if you have drafted a band with 10, 20, 30 color changes.  Yikes.
 
Your solution is at hand ... the free-standing inkle Warp Yarn Feeder.  Holds up to 6 different balls, designed at a height that both provides maximum organization as well as comfortable feeding into your warping step.  Since it stands on the floor, you can choose where to place it for your own personal best use - left side of you, right side of your, maybe even at the edge of the table in the center!
 
Takes over 70 separate steps and multiple hours to hand craft each one (made in Washington state).