I have always carried a knife on me since i was in scouts. I use it to cut open boxes and bag at work, and around the house i use it to cut open any bag i need to. I hate ripping things open. It also acts as a makeshift screwdriver, and a great bottle opener. I am carrying the CRKT m16 right now, verygood strong blade. Keeps its edge very nice.
http://www.countryknives.com/store/p...?sku=CRM16-04Z
Also, buck knives are very good for a beginner blade.
enjoy