In the pajama post GHM mentioned that she likes to wash all pajamas together in one load and my first thought was, "That's crazy! You can't mix different colored pajamas together!" LOL
I sort by color- blues, blacks and greys are together and all khaki/ brown /olive green things are another load. Bright colors like pink, purples, yellow, etc. are another separate load. All of my towels and cleaning rags are white so that they can be all washed together with bleach, white clothes are another separate load. I wouldn't dare wash white clothes with white rags- the horror! ;-)
Do you sort by color or by type (all pajamas together, baby clothes in one load, you and dh's clothes in separate loads, etc)?
Re: s/o: How do you sort laundry?
I don't sort laundry. Never have. (Is that bad?)
EDIT: Wait, I do a seperate load for towels that are used for cleaning the house - I guess that's sorting.

David "BD" 2/8/07 Spencer 9/12/11By color. Usually whites, lights, brights and darks, depending on how many millions of loads I have to do.
DS - December 2006
DD - December 2008
A lot of the time this is how it is in my house too lol
Whites
Darks
Colours
Towels
Sheets
Whites
Brights (pink, red, etc)
Darks (like jeans, black stuff)
Towels
My loads:
diapers
towels
darks
reds
whites
pj's/underwear/socks
That way I don't have to do more than one load each. If I put underwear and pj's in with the respective colors, it would be too much per load and I'd have to do 2 loads of whites and darks.
Whites, towels, kids clothes, our (mine & DH) color clothes, Dh's work clothes.
I have never thought to sort them more by color than that. If they are new, I wash dark colors together and light colors together.
Whites, colors (minus jeans), jeans (they are a full load themselves), towels, bedding
All of my groups are a full load whenever I do laundry.
Whites (including towels)
Socks, underwear, and pjs
Everything else
I do whites, darks, and delicates for clothes. I wash everything in cold so color doesn't really matte. The delicates are mostly my clothes and Lila's clothes, a few things of MH's.
I wash sheets together and towels together.
I did Lila's clothes separately until she got a big girl bed. I will do the baby's clothes separately once she's here, at least at first.
Whites, darks, Sweaters, delicates, bedding, towels. I think that is it.
holy cow, that's a lot of sorting.
I'll admit something else too... We converted the guest room into the "folding room" (it's right next to the laudryroom on the 2nd floor). We go in there each morning to pick out our cloths. And we only transfer the folded clothes to our closets/drawers when company stays over. hahaha, that's my dirty little secret that I've never told anyone.

David "BD" 2/8/07 Spencer 9/12/11whites
towels
bedding
color- warm
colors- cold- sometimes light and darks depending on the amount
DS clothes
DD clothes
towels go together b/c I throw vinegar in with them
whites
colors
delicates
Dh's white undershirts and work shirts (its a full load every week)
light colored - cold wash
light colored - hot wash (underwear, socks, towels - the yucky stuff)
dark colored - cold wash
dark colored - hot wash (underwear, socks, towels - the yucky stuff)
Geez, is it sanitary to not wash underwear and such in hot water? That would be a nice timesaver!
Unless they've never been washed, I never seperate by colors. I wash all the kids' clothes together - sorted by "needs to be stain treated" and "no stain treating needed."
Usually I wash my clothes alone, but if I have small loads I may mix the kids and mine.
Towels and sheets and other household laundry are all washed separately. I don't like the thought of my underwear hanging out with a kitchen rag. Ew.
DH does his own laundry and tends to just throw everything in together.
(m/c 1.17.07, m/c 5.15.07)
DS - 03.15.08
DD2 - 12.03.09
DD3 - 3.28.11
Whites
Darks
Pastels
Towels