What do you use for sharpening your chisel and plane blades? Why?
Up till now I have been using a range of sandpaper grits in the form of strips stuck to a piece of plate glass. It works well for me but I tend to go through quite a bit of sandpaper, especially when tuning newly acquired blades. I also have some no-name brand medium grit oil stone for jobs requiring the removal of lots of metal e.g. fixing a chipped blade.
A good set of oil stones seems to cost a bit more than the equivalent water stones.