Smith's CCD4 3 IN 1 Field Sharpening System. 17 bucks currently. Very well made. I've taken knives from absolutely dull to face-shaving sharp in about 10-15 minutes with it. I don't use it as it directs, though - I hold one of the ceramic stones in my hand and carefully sharpen.
Outside of that, Tuf-Glide, a Wiha torx set, Tuf-cloth...
As far as knives go, there are some good CRKTs in that price range. If you want a cheap beater, get a Cold Steel Kudu. I use one as a kitchen knife for finer slices than I can get with my saber-ground kitchen knives. It's not the best steel, but it's extremely corrosion resistant and holds an edge long enough for most meal prep/daily tasks.