|I've got some accessory patterns that have up to six items in each envelope - often with several small pieces per item.
I take each accessory item and separate out the pattern pieces and put them in a quart freezer bag, writing the item name on freezer bag "white strip".
All quart bags, instructions, and envelope go into a gallon ziploc bag.
This way I can pull out exactly what I want to make without sorting through the envelope (and referring to the instructions constantly for the numbers/letters on the "small bits"). Also, the small tissue pieces are safe and won't fall out of the envelope or get torn accidentally.