Beitzah, Chapter 4, Mishnah 1. This mishnah addresses the question of how one carries objects on Yom Tov in a manner that does not look like an ordinary weekday activity.
Bringing jugs of wine from place to place:
"HaMeivi kadei yayin" - one who transports jugs or barrels of wine from place to place on Yom Tov, within the techum of course, is permitted to carry them.
"Lo yavi b'sal u'v'kupah" - he may not bring them in a basket or in a large container, because doing so looks like a weekday activity, the way merchants and the like go about their business.
"Aval meivi hu al k'seifo u'l'fanav" - he may carry the individual jugs on his shoulder or hold them in front of him, since this does not give the appearance of weekday labor.
Transporting straw:
"HaMolich es hateven" - one who transports straw in order to burn it or to feed his animal.
"Lo yafshil es hakupah l'achorav" - he may not sling the container holding the straw over his back.
"Aval meivi hu b'yado" - he must carry it in his hand, in front of him. This is a departure from the ordinary way the task is done during the week.
The pile of straw and the wood in the muktzeh:
The continuation of the mishnah no longer deals with the manner of carrying and transporting, but with the question of preparation: "U'maschilin b'aremas hateven" - on Yom Tov one may begin taking from a pile of straw in order to burn it, even though he did not designate it for that purpose before Yom Tov, since it stands ready to be burned in any case and is therefore considered prepared, and it is not subject to the law of muktzeh.
"Aval lo b'eitzim shebamuktzeh" - the word 'muktzeh' here does not carry its familiar meaning of the prohibition against handling objects on Shabbos and Yom Tov. Rather, it is the name of a place: an area at the rear of the house where people would store items, wood among them. This wood was not designated for burning but was intended for other purposes, such as building and the like, and therefore one may not begin using it on Yom Tov.
In summary: this mishnah taught us two laws. First, the manner of transporting objects on Yom Tov: jugs of wine and straw are carried with a change from the usual way, on the shoulder, in front of him, or in his hand, and not in a basket, in a container, or slung over his back, so that it should not look like a weekday activity. Second, the law of preparation: one may begin using a pile of straw, which stands ready to be burned in any case and is not muktzeh, but not wood stored in the place called 'muktzeh', since that wood was designated for other purposes.