I use my Spyderco Calypso Jr. at work for opening boxes. I love the knife, it works great. I open up the boxes easy, but the tape leaves some sticky residue on my blade. I try warm water and soap, but that does not get rid of the stickiness entirely. I found some "Goo Gone" (http://www.magicamerican.com/googone.shtml) in my closet and had a go at it. It cleans the residue off easy, then I give it a warm bath. Everything "seems" fine, but I am worried the chemicals might be tearing apart my Calypso, anyone know if "Goo Gone" is safe, or what product I should be using instead of it? Thanks in advance.