Dude, same. I'm amazed at what people will simply give away. My magical incantations (that I'll share with you all today) are:
"Bro, nice ______." (Chances are, this is a dusty item that clearly isn't being used. Tempts the victim to say "yeah, I never use it, do you want it?")
"Hey, I noticed _______ over there isn't being used, do you still want it?" (Again, probably referring to a dirty item that they will invariably give me lol)
Hope this gains you all some free stuff too lol