Are you sick of Stacks not behaving properly? You can change the behavior in only two clicks, so no need to fret. Just right-click on the stack that you want to change, and then select the behavior of your choice. You can alter how it Sorts content, Displays the icon in the dock, and Views the pop-up menu.
I like to keep my Downloads stack sorted by the Date Added, displayed as a Stack, and viewed as a Grid. You should tinker around with the settings to find what works the best for you.
Photo Credit: austinevan