When's the last time you thanked your GM? Have you ever thanked your GM? For what, is the question of course. GM's can spend a great deal of time creating episodes/sessions for the players to enjoy - and hopefully the GM as well. It takes time and effort and those who have never GM'ed, it's not as easy as it might seem.
For myself, I can spend many hours looking for pictures of places to help the player see the locale, perhaps a map courtesy of the internet to show them what the layout of the area of Japan looks like that their characters are in. I've created dozens of commercials with sound/music as an intro to an adventure to help set the adventure mood, and perhaps give the players insight that the characters cannot have. I've added writing up cryptic notes to actually hand over to the players to look at it, instead of just telling them what the note they've found says, and so on.
I've heard of others using powerpoint presentations, slides and other visual aids to help. Others have battlemaps and figurines to assist the GM.
So, just a thought: if you haven't thanked your GM for all his/her work in awhile, why not do so next time?