Useful when copy/pasting things to share with other people in email and such: $ pbpaste | pbcopy takes the current contents of the copy/paste buffer and removes color/font/background color rich formatting and puts just plain text back into the paste buffer. And of course pbcopy and pbpaste are also very useful on their own.
pbpaste |sed 's/FIND/REPLACE/g' | pbcopy
Maybe make this into a script you can run from alfred. ;)
Also if you want to have access to pbcopy remotely, try this: