I have come up with an idea for Redbubble and posted it in Here Using Redbubble Profit to purchase other works.
I would like to see Redbubble offer the option at checkout to use any profits you have made from selling your works to purchase other works. For those of us who have sold some and it is just sitting there till we meet the requirements to receive the money we could use it to put towards purchasing other things on Redbubble. I think this might help promote more sales.
Please if you agree and think this is something you would like to see Redbubble offer then click on the link and help out with some votes.