There are 4 bottles that you can get in Zelda64. These bottles let you carry a lot of things (i.e. potions, fairies, fire, etc..).

B O T T L E # 1

The first bottle you are able to get is the bottle at Lon Lon Ranch. Talk to Talon and he'll offer to play a game. The point of the game is to find the 3 super cuccos before the time runs out. This task can be easy, or hard. To ensure you win, toss all the regular chickens into the corner between the table and the stairs. Now, when Talon tosses the super cuccos in, you'll find them faster than he can count! The prize? A bottle!

B O T T L E # 2

The second bottle is in Kakariko Village. The cucco lady's cuccos have run away and you must get them back for her. There are 7 cuccos in all. Most of the chickens require that you use another chicken to float to their location. The most hardest ones are the one in the crate nearest to the entrance (get it by rolling against the crate), and second is near the next to the windmill. The prize for getting her the chickens is the bottle, and a purple rupee from then on.

B O T T L E # 3

The third bottle you get in Lake Hylia. When you go to Zora's Domain and get the silver scale, (by winning the diving game) you will find a passageway (by diving) that will warp you to Lake Hylia. When you come out on the other side, swim a little farther and you will see a bottle at the bottom. Dive to get it. There is already a letter in there, show it to King Zora to get it out.

B O T T L E # 4

The last bottle, you get it when you are an adult. You must find the 10 big poes in Hyrule Field. First, make sure you got Epona at Lon Lon Ranch and also the Fairy Bow. Then, ride around Hyrule Field and shoot down those big poes. Each time you kill a big poe, bring it to the poe dealer before the Market. He'll give you 100 points each time you bring in a big poe. When you get 1000 points, he'll give you the last bottle of the game.