Camping Knives search results on ebay.

Multi-purpose tools are great for many tasks, they usually have screw drivers and pliers built in as well. The trade off is the weight, a Swiss Army knife is a nice alternative for this type of knife but it will not be as sturdy.

If you need a good all around choice consider a survival knife with a good sheath. Most of these come with a good grip, a strong blade with a cerated back for sawing and a handy space in the handle for fishing line and perhaps a compass. They often come with a sharpening stone which can be pretty useless, get a proper knife sharpener and sharpen before you leave for the trip. Survival knives can be used for so many purposes, even digging a hole.

Remember a knife is a tool, it's not for impressing anyone. On the other hand don't be afraid of it or bothered by a knife's size if it is the right tool for the job.

An inexpensive knife is one of things that "you get what you pay for". If the blade is going to wobble and perhaps rust over the years why bother?