A good way to get your own way within a game is to simply act as though the GM had allowed you to do what you wanted.

GM: You encounter a troll!
Player: I slice its grotesque head off with my sword and loot its treasure!
GM: You do 3 points of damage. It swings a muck-ridden claw at you.
Player: How many gold pieces? Any good magic items?
GM: No, it's still attacking you.
Player: I bet there's a ring. Trolls always have magic rings.
GM: You have the initiative now. What are you doing?
Player: I stuff the gold in my backpack. Will it all fit?
GM: No, look, it's not dead yet...
Player: I might have to make a couple of trips and fill up the saddlebags on my horse. Do I see any secret doors?
GM: You're still fighting! The troll is—
Player: I use my wand of treasure detection to see if there's any more loot hidden in the room.
GM: No, it's... Oh, for crying out loud. You find a concealed chest behind a pile of straw.
Player: Awesome! I check for traps.

Transcript

Mace Windu: See, Master Yoda? Jar Jar's really smart!
Yoda: A genius, he is. But now what?
Mace Windu: I'll go get the clone army! You go help Anakin and Padmé find Obi-Wan.
Yoda: Old and frail, I am. Adventure, excitement, I crave not these things.
Mace Windu: Hmm. Maaaaybe... I could go to Geonosis.
Yoda: Yes, yes!
Mace Windu: And you can go to Kamino.
Yoda: Yes, ye...
Yoda: Wait a minute.
Mace Windu: Say hi to Lama Su for me!