The TBS Lynx
The Lynx came about as smaller fixed blade knives are becoming a very popular option for many. This is an absolutely ideal knife to throw in the top of your day pack or is equally suited for long term use as your regular knife.
The Lynx makes a perfect sized neck knife and the sheath lends itself to all manner of carry options. Simply attach a neck lanyard.
I have found it makes an ideal knife for everyday tasks and is great for field butchery as most of the time you simply don't need a bigger knife.