when the cuttings come in, i usually take them out of whatever package they came in and put them in new ziploc bag. usually leave them in there for few days so they will accumulate to the room temp and to have all the stuff on the cuttings to soak in the moisture from the cuttings.
once i feel that they have been in there long enough, i will take them out and start processing the cuttings to the size i like. usually 4-5" with at least 3 nodes. the top of the cutting is cut in diagonal angle so the moisture will not sit there too long, and bottom cut very close to the last node.
once the cuttings are the size i like, i'll wash them with anti bacterial soap. medium hard bristle toothbrush is used to scrub the leaf scar and places where debris will collect.
i used to soak them in bleach solution, but i haven't done that in about 1.5 yrs. reason is, if the cutting will mold, it will mold bleach or no bleach.
i only use viva paper towel to wrap the cuttings. not sure why, but they cause less mold then bounty paper towel. i soak the paper towel with water then squeeze all the water out. wrap the paper towel around the cuttings as tightly as possible, about 3 cuttings per paper towel. they go into 1 gal freezer ziploc bag.
they stay there from 2 to 4 weeks.
what's your prep look like?