Don't go into this with the idea you will get it done fast, take your time to lay out your tools, take a picture but don't cut. Layout the next drawer take a picture but don't cut. Do this for all of your drawers and ponder over how you can better layout your toolbox over the next few weeks, once you cut, it lives there forever. Is this a tool you might replace with something else? Then leave the space empty for when you decide what will live there forever. Once it is done I know you will be as happy that you did this as I am. By the way, the rest of my drawers look a mess, I will ponder over how I want to lay them out over the coming months.