SlyReaper wrote:If I find a lot of deku sticks lying around, I'll use those. But the trouble with having to avoid the jellies is that I don't have time to stand in the room and think, and have a good proper look around for buttons and switches and destructible walls and whatnot.
Come to think of it, just outside the whale dungeon, a fairy gave me a fire spell of some description. Would that work on the jellies? Or will it be like the slingshot seeds that do zero damage on them?
You can farm Deku Sticks fairly easily places like the approach to the Great Deku Tree, and you can pick up upgrades for your stick carrying capacity that also refill you (If you've found the forest stage, I think there's one there; and there's a sales-scrub in the Lost Woods, near the exit to Hyrule Field (though you get there by a different route) who I think upgrades your Sticks - it might be Deku Nuts - it's been a while)
And you can always go after the jellyfish once you've got a more suitable weapon. In the meantime, I forget whether throwing >spoiler< at them works, but if it does, that's also an option a lot of the time.
The flying jellyfish can be defeated with most forest-type (wooden) items, except the slingshot. The easiest way is the weapon that you find in Jabu-Jabu's belly, but otherwise, they can either be killed with the sword (after stunning with deku nuts) or deku sticks, or bombs. (But I don't think there are many deku sticks or bombs in that area... if there are any, they are few and far between.)
I always recommend getting the first Deku Stick upgrade before even entering the Great Deku Tree, but you don't need more than a couple of deku sticks after the Deku Tree, Goron City, and Dodongo's Cavern, which is where they are most necessary. And they aren't very practical as a weapon, because they break when you use them, unless you are in an area where they are common, like those three places I just mentioned. Anyway, you still might want to get the upgrade, though. If you enter the Lost Woods from the Kokiri Forest, turn left and then left again to get to the room under the bridge, which is where you can buy the upgrade from 10 to 20 Deku Sticks for either 40 or 50 Rupees, I forget which. (I recommend doing it as soon as you get a sword and shield, but technically I don't think you need either!)
The other Deku Stick upgrade (raising the limit to 30) is more difficult to find; like rmsgrey said, it is in a hidden hole in the Lost Woods called the Forest Stage, and you have to have the skull mask.
I hear velociraptor tastes like chicken.