Replying to #12
It's not impossible, and the runner man gives you 500 rupees :P minus what you pay to the salesman, now onto how to get them, usually i pick all skulltulas of all dugeons sans Dodongo's cavern, there are plenty spots around hyrule to get a few extra's, not to mention there are three avaible skulltulas en route to gerudo's valley and a piece of heart, there are about three more you can get in lake hylia, in hyrule field there are a few that you can get from the hidden grotto's all around hyrule, if you take onto account those + the ones hidden on soil around Death mountain, and so on 30 isnt a crazy number (in fact i have reached it with ease same as my uncle).
There are also about three spiders in lost woods, two that are avaible to you rigth now, one is behind where you sell the skull mask tot he skull kid, the other is en route to get the upgrades, take care of the seller scrubs and go onto the soil near one of them and plant a bug there, there is a second however, that one cannot be obtained until your visit as adult link since you need the now grown plant to acess it.
As a side note i cant remember with how many skulltulas we end with but i think 35 is our usual number.
So to recap:
Spoiler
3 on Lake Hylia, one behind the scientist house, you need the boomerang for that one, a second one is outside too of the scientist house, you need the use of beetles for this one, this one is tricky, go the large tree and swim from it to the small swaute island, behind one of the pillars there is a skulltula.*there are other three on lake hylia but cannot be obtained until you are an adult*2 on Gerudo's Valley: the first one is near the small wood bridge, use the slingshot to kill it then grab the token with the boomerang, this other is tricky, see where the chicken is? try to search for a wooden box, go there using the chicken as a means of transportation, now grab the chicken again and go towards the wall on your rigth side you should drop inside the waterfall for a piece of heart, now let the river take you down until you see a gerudo and a cow, climb there and voila use bugs to get an other skulltula.? on Hyrule field, there are a good number of them on hyrule field i cant remember all of them but i recall one near gerudo valley, near where you kill a pea hat there is a spot where there is a big rock and a bunch of small ones, use a bomb to clear the rock and then go down, use dins fire to clear the cowebs and then use the slingshot to kill the skulltulas and the boomerang to recover the token.3 on death mountain, well near where you start death mountain from Kakariko Village, there is one hidden on a bombable wall (it looks like a piece of cloth), an other is just outside dodongo's cavern, from there move onto the place where you got the spin attack and magic bar, go inside the volcano, remove the wooden box there, it's close to the entrance, kill it and get the token.3 or 4 on kokiri forest, i cant recall if you can get one in particular as a kid, use sun songs to make day onto nigth, the male twins house has a golden skulltula off it, go near the shop and you should see some soil, use the bugs to dig it up.2 that you can get right away on Lost woods, i mentioned them before but here i repat myself, take the left exit from where you sell the skull kid a skull mask use bugs there on the soil to remove the golden skulltula, where the seller scrubs are there is an other soft soil spot, use the bugs to remove it.2 on Zora's Domain has one outside near the waterfall on a ladder , i mix an other one, from the hyrule field entrance go up, use the chicken to jump the river and you should see something like two peaks where the river flows, go up to the route you would take to the waterfall, however stop and see again those two peaks, use the chicken and move to slowly to the rigth side, you should fall on the internal side of the peak, use the ladder to climb and check if on the opposite wall from where you climbed there is an skulltula.4 on kakariko village, one in the incomplete building brick, near where you go to death mountain there is a house, behind it near where the jars are there is an other, there is a third one on the ladder that goes all the way up to the viewing spot, the last one is tricky, go up to death mountain and again from where i told you on the spot that you got the spin attack and magic bar talk with the owl and he will drop you on the roof of a red house, behind you there should be an other golden skulltula, before you climb down go to the left and check for a small plattaform, drop on it, enter the house fromt he small hole, you will get the piece of heart that is behind the cow.Two on Kakariko's Graveyard: one is on soft soil, the other one you need the boomerang it on the wall near the second row of graves, from bottom to top.On the zone jabu jabu Belly there are several, howeve two can be obtained as a kid, the first one is on the wall opposite where you landed after beating that dungeon, where ruto gives you the zora sapphire, climb that branch and boomerang it to death and recover the token, the other is on the isolated land mass behind jabu jabu, roll to the tree and it should drop down, btw use a bomb behind the tree on the wall that has a silver/grey rock blow the wall and enter, you will get Farore's wind.Total spider count: 24 spiders.+whatever amount he got from Deku Tree, Dodongo's Cavern and Jabu Jabu's belly