it helps to identify each fabric- which one it is-where it goes- use sticky notes to identify each one with the patterns---usually on the pattern it will list...fabric 1, fabric 2 ect---or A,B,C...identify each one- making sure you have each one called for- and the proper amount....that way when you are ready to start you will be cutting the correct fabric-
check out the cutting chart- and generally you cut in order as shown on the cutting chart- again use sticky notes (or baggies) to keep the pieces identified.