Not sure why everybody values frost arrows so much and Eyescream so little. Needles are the best arrows and even Obsidian will serve you very well and are REALLY cheap to make. Much easier then frost.

Eyescream on the other hand is really easy to make (by now you should be swimming in Greydwarf eyes) and is the best stamina food buff you can get in the Mountains. And you will get a lot of glands, because you will have to kill a lot of drakes when venturing there.

Obsidian or needles for arrows, frost glands for Eyescream. Served me very well. I'm now swimming in needle arrows.