When you do your silks, Try this tip - Do not stop designing with a particular bunch, stem, or grouping of silks till you have used up every leaf, bloom, petal.
Also, When I do silks - I use a process I call 'chain' designing. I take and group various silk supplies by types and colors - Lets take a Christmas grouping of red and green.
We have red tulips, red roses, red carnations, red berries, holly, fir, and some bits of other red silks......I might start with a wreath, then a centerpeice, then a birdhouse decoration, then a smaller wreath, then a vase design, ending up with little napkin rings and tiny accessory designs.