nobody mentioned the spyderco dodo. now, I am not one for a hawkbill style blade for every day cutting chores as I have always thought of them as specialty blade shapes for specialty cutting, but in august, boxer93 loaned me his black serrated dodo and it hasn't left my pocket except to fly. this knife has gone everywhere with me, on the boat, to the beach, and has proven itself a very very useful cutter.
I use it to open mail, bags of candy, chips, food, sauces..you know the kind, cut rope, cut rubber, leather, twine, and anything else you find in day to day chores. I don't use it on the boat as a hard use knife because I have a frosts fixed blade and an atlantic salt. I have used it around salt water, sand, gotten food and juice on it, etc and haven't cleaned it once, and sharpened it 3 times in four months. I keep it in the left front pocket with my keys and when i need something cut I have always reached for the dodo first. when it comes time to return this knife I will cry, and I can guarantee that i will be reaching for it when it is not there.
it is discontinued and may be more than you want to spend but if you look and are patient one will usually pop up here or on ebay.
for such a small blade I prefer serrated and the serrations on the dodo are not deep or toothy, and I like them better than most serrations on a spyderco. I find that I can use the dodo's serrations for finer cutting chores than i can with a deeper more toothier serration.
the ball bearing lock is very secure, but be careful, it DOES get pocket lint between the blade spine and the handle spine of the knife and this will prevent the knife from locking.
the blade shape and handle are both versatile and very ergonomic, allowing for a variety of grips when doing different styles of cutting.
if you get a chance to handle or use one of these you'll see what I am talking about.
pete