katarin, follow the link from Chris Kavanugh and buy a mora from Ragnar. Wait, don't buy one, buy at least a few. He charges the same price to ship one knife as he does to send one. he also has good prices on Opinel knives, which are inexpensive folders with locking rings (if you buy a knife as large as an OP-6) from France. I'm not fond of most things from France, but these are a good value.
I'm with OBG on the P-38, although I prefer a P-51 because I find it easier to use. Both can also do several jobs, not just open cans, such these on a list I found: 1. Can Opener, 2. Seam Ripper, 3. Screwdriver, 4. Clean Fingernails, 5. Cut Fishing Line, 6. Open Paint Cans, 7. Window Scraper, 8. Scrape Around Floor Corners, 9. Digging, 10. Clean Out Groove on Tupperware lids, 11. Reach in and Clean Out Small Cracks, 12. Scrape Around Edge of Boots, 13. Bottle Opener, 14. Gut Fish (in the field), 15. Scale Fish, 16. Test for 'Doneness' When Baking on a Camp Fire, 17. Prying Items, 18. Strip Wire, 19. Scrape Pans, 20. Lift Key on Flip Top Cans, 21. Chisel, 22. Barter, 23. Marking Tool, 24. Deflating Tires, 25. Clean Sole of Boot/Shoe, 26. Pick Teeth, 27. Measurement, 28. Striking Flint, 29. Stirring Coffee, 30. Puncturing Plastic Coating, 31. Knocking on Doors, 32. Morse Code, 33. Box Cutter, 34. Opening Letters, 35. Write Emergency Messages, 36. Scratch an Itch, 37. Save as a Souvenir, 38. Rip Off Rank for On-the-Spot Promotions, 39. Bee sting removal tool (scrape off w/ blade).
One other thing I love, that is inexpensive as all heck, that I have in my BOB, and I think everyone should have and know what to do with is yeast. It's cheap, and it's found and cheap in just about every grocery store. If you know what you are doing with it, you can use it and make more of it at the same time. You can take something that does not taste good and make it taste delicious, and you might be able to make a decent beverage with it, in which nothing pathogenic can grow.