what is the best way to fold and pack a business suit into a carry on bag / trolley?

Hello  mark_ecommerce-ga, 

Thanks for your question.

I have to assume that the question is asked with the intent of the
answer to describe how best to pack a suit so it looks new when
unpacked and requires no pressing. As a former road warrior, this is
perhaps the best tip I ever received:

Pack it in the dry cleaners plastic on a hangar. Very seriously. I do
this with four or five shirts as well in one plastic bag. even on long
trips, they come out the the suitcase looking like new.

Now, as to carry on, most of the official sized carry ons have some
device for suits or longer garments. I have three suitcases and they
are all similar - a device that accepts hangars (and likes the smaller
travel hanagr, but takes even regular wire), then has two or three
elastic straps to hold the garments firmly to a somewhat stiff
surface, and then folds in threes to fit the carry on bag. With your
suit(s) in the plastic "bag", and I say bag for lack of better term
but the bottom is open and the hangar protrudes through the top, even
this severe folding leaves the suit in near perfect condition upon
unpacking. You can find an excellent and well priced Kirkland carry on
of this style at Costco. Or even www.costco.com .

I have never figured out WHY this is. Perhaps the plastic acts as a
"lubricant" so the material has a bit of slip and slide. But, try it.
You will be amazed.

I trust your next trip will be wrinkle free.

Regards,

-=clouseau=-

I have two techniques:
1. Reverse one shoulder and insert the other inside it so that the
inside of the jacket is turned out; shake to let the sleeves fall
without wrinkles, fold in half.
2. Lay the jacket down, pull the front with the buttons across inside
and the front with buttonholes across in the other direction on top,
so that you have three layers, reducing the width of the jacket. 
Drape the sleeves on top so that no wrinkles occur; pick the jacket up
at the sides, so that the collar and bottom hand down, and lay it in
the bag.

Fold the trousers with the minimum number of folds across the legs to
fit it in the bag.

No. 1 will give you a smaller package and may wrinkle the sleeves
more, which depends on the type of material.

Obviously, the suit should not be crushed in the bag, but it should be
secured so that it remains flat as folded when the bag is picked up.

If it does get wrinkled, an old trick is to hang the suit in the
bathroom with the hot shower on, so that the warm moist air can steam
it.

Next question?  ;-)    Have a plastic bag for dirty underwear, and
fold dirty shirts instead of wadding them together, which takes more
space.

Best thing with trousers is to roll them into a cylinder from the foot upward.
Provided they are not squashed they unroll fine. If the crease the
shower trick is good.