Right now the typical transaction is half a kilobyte or less, correct? And cost is rounded up usually?
Best way to reduce transaction fees is to price it on a per byte basis. There, transactions just got quartered.
You want to reduce 0001 btc fee? :-)
Come on man ... its cheaper than a box of matches ...
:-)
Why to reduce it?
Anyway you can pay no fee if you like ... qt settings? :-)