I had a Lead once that hated any scripts with postage stamps and hidden inputs. He kept joking about it every time he saw me using them, so I wrote a little code to allow him to deactivate all the postage stamps and show all the input connections. I ended up getting used to using it, so I kept it. I have it set with the hotkeys ctrl+alt+h (show/hide postage stamps), shift+h (show/hide inputs), and ctrl+shift+h (show/hide postage stamps and inputs).

Expand Postage Stamps and Inputs
import nuke
def postage():
for i in nuke.selectedNodes():
if i['postage_stamp'].getValue() == False:
i['postage_stamp'].setValue(True)
else:
i['postage_stamp'].setValue(False)
def postage_input():
for i in nuke.selectedNodes():
try:
if i['postage_stamp'].getValue() == True and i['hide_input'].getValue() == True:
i['postage_stamp'].setValue(False)
i['hide_input'].setValue(False)
elif i['postage_stamp'].getValue() == False or i['hide_input'].getValue() == False:
i['postage_stamp'].setValue(True)
i['hide_input'].setValue(True)
except NameError:
if i['postage_stamp'].getValue() == True:
i['postage_stamp'].setValue(False)
else:
i['postage_stamp'].setValue(True)
def hideInput():
for i in nuke.selectedNodes():
if i['hide_input'].getValue() == False:
i['hide_input'].setValue(True)
else:
i['hide_input'].setValue(False)