so i'd say solutions pog is a d-Limonene based solution and chemspecs is various petroleum distillates ...  both will work im sure 
I mostly use good ol' white spirit POG   

  i know it would have worked well on the sticky tape the OP mentions .
I found this online chemical sales site , selling most of the popular constituents of popular carpet cleaning products ...  perhaps not wholesale prices , but you could save or make your own desired strength products  ..
I know most people couldn't be bothered  
 http://mistralni.co.uk/
http://mistralni.co.uk/