Whenever possible, avoid multiple layup sessions, and brushed resin application.
If tape (not always a good choice), cut all planned plies to length and stack them on a sheet of 4 mil plastic. Saturate with resin; just pour it on, then cover it with another plastic sheet. Give it a bit of time to soak while you work the resin around with a squeegee or roller. When it's all saturated, work all the excess resin out to the sides, away from the layup. Trim offf all the excess plastic, in particular the section of plastic/resin/plastic sandwich and throw it in the trash. You're left with a properly saturated stack of glass plies. Peel the plastic off one side, pick it up, flip it over, and place the stack on the work as desired. Now peel the remaining plastic, and stipple the air out from under the plies.
If using cloth, cut the plies a little larger than the finished part, stack 'em, wet 'em, cover, and saturate. Now draw the desired shape of the layup right on the plastic cover sheet. Trim to shape, cutting the entire sandwich, peel and place as before.