I am currently taking a darkroom refresher course this summer, and I've forgotten how fickle developing your own negatives are. It isn't the best darkroom either; it is dusty and small and there are a lot of flaws in the way it is set up. I kind of overdid it with the photo-flo because I accidentally dropped my wet negatives on the floor as I was starting to hang them. MAJOR FAIL. The result is a dusty negative that might be hard to print. OH WELL. You win some you lose some.
And the streaks? That's the silver. This film I developed is 13 years old, and it was not stored properly. The effect is pretty cool, actually. Expired film is a bit of an unpredictable beast, especially if you don't know how it's been stored prior to [your] receiving them.
More to come, as I re-discover this medium!