Staples gives $3 for each cartridges that you recycle. If you have some empty cartridges at home/work/etc, recycle 10 of them (monthly limit) at Staples, get your recycle check for $30 next month and use it on the following item (genuine SONY charger):
http://www.staples.com/office/supplies/p1_Sony-AC-Charger-for-Reader-Digital-Book_275387_Business_Supplies_10051_SC3:CG71
P225 8:CL164364
Again, this will give you a "free" charger if you have some empty ink cartridges and dont mind waiting for your check for a month.
Have fun