(Please click through to Think Geek. They might be having a sale!)
You are prepared. Whether you're wandering the Kanto region (or just your own neighborhood with your smartphone) in search of another Bulbasaur, you don't go out there without a healthy supply of Poké Balls. Because it's a real pain to have that Abra right in your clutches, only to have him pop out of the ball after the third shake-a-shake-a, and then look down into your bag and discover that was your last ball. Never again! You always go out into the world stocked up and ready...