More program memory needed

I have come to this point in Arduino ide, wireless stick lite:
Sketch uses 1265766 bytes (96%) of program storage space. Maximum is 1310720 bytes.
I need to add more program code. I cant find some partition schemes in Arduino IDE. Is there a way to increase program space?

Best regards
Knut

I think the best way now is to optimize your code. Direct manipulation of registers.