Oh yeah, one more little tip concerning x-acto and razor blades. May sound silly, but be careful when you throw them away. Once I was carrying the trash outside to the curb when the bag split and trash fell all over the drive way. I realized that the single edge razor blade I threw away had split the bag. I started thinking what if an animal at through the bag, or a kid got around it, or something else. So know when I throw away my old used blades I wrap them in electrical tape so that nobody gets hurt. I know it sounds silly, but better safe than sorry.