The Frosts Mora Swedish Armys are great light weight, inexpensive utility knives. If you get one you will probably want a few more! These knives have thin blades (about 0.08) with Scandinavian grind (no primary grind, only an edge bevel at around 11 degrees per side). The Moras cut very well, but the blades are a little thin for prying.
The plastic sheath that comes with the Swedish Army Knife is fine for carrying in a pack or even in a pocket; but it leaves something to be desired for belt carry. Fortunately, it is easy to rig the sheath up to attach to a belt loop like the A.G. Russell Deer Hunter knife, using a carabineer, double ended snap, or a single snap and a cable tie. The Swedish Army Knife is light enough that you could also rig it up as a neck knife, although it is a little bulky for carry inside your shirt.
-Frank