[Histonet] Slide and Block Disposal

[Norm Burnham]

Dear Histonetters,
I think everyone on the Histonet would like to hear about all the creative,
cost effective, and HIPPA-compliant ways labs can dispose of slides and
blocks that have exceeded their retention limits.  
Does anyone use an outside company that disposes of glass slides and/or
paraffin blocks, or is there equipment to be rented/purchased that would
provide a solution to everyone's slide and block disposal challenge?
We would all like to hear of your innovative or not so innovative solutions
to this challenge.
Thank you in advance for your solutions.
Norm Burnham