#1
..wear a sweat band on their picking arm when they play?

It's getting kind of humid up where I live, and my arm was sticking to the body of my guitar. So I took a long sock and cut about 4" off the top part (the tubular section), and placed it right where my forearm meets the body. Pretty ghetto, but damn was I surprised at how much easier it was to move my hand around. I'm a wrist picker primarily, and usually I can only access 3-4 strings at a time comfortably. With the increased forearm mobility it's so much easier to shift my hand around and travel across all 6 strings. And it's a pretty cool look too.
#2
No, but I've seen guys drape a towel over their guitar. This is probably even more important on a guitar with a nitro finish.
#3
I NEED to wear sweatbands when I play.
For some reason, I feel so uncomfortable when I'm not wearing a sweatband on each wrist.
Jackson DK-2 [2004 MIJ] (EMG 81/SA)
Jackson RR-3 [2007 MIJ] (EMG 81/60)
Ibanez RG370DX [2009] (EMG 81/60)
Epiphone Les Paul Custom [2004] (EMG 81/85)
Ltd/Esp M-17 7-String [2013] (EMG 81-7 set)
Bugera 333XL 120watt Tube Head, Crate BV412 Cab
#5
I wear a headband, usually helps.
Guitars:
LTD KH-602
LTD M-15
Schecter Hellraiser FR (for sale w/hsc, pm me.)
BC Rich Bronze WarCock
BC Rich Ironbird1
Tokai Voyager
Jackson JS30 Kelly
Vester: Metal flake gold/black crackle
Vester: rainbow crackle
Carvin V220
#6
i wear a large one just below my elbow on my picking hand and a normal sized one on my wrist on my fretting hand to keep the muscles warm. not so much for sweat as i keep a towel in my back pocket for that, more to keep the main muscles warm as i play so i dont get fatigued so fast.
#7
I put a condom over my hand, so I can glide over the strings with ease.
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Gear:

Guitar(s): .Shecter Tempest EXTREMEEEEEE
--------------Maton CW-80

Amplification: Randall RG75 G3
#8
Quote by Nimbus456
I put a condom over my hand, so I can glide over the strings with ease.

Please someone laugh about him, its getting pathetic..


For the sweat-thing i dont use them, never did so there is no reason to do so,

I think its just a habit for some people