Touchpads
"I absotively, posilutely -hate- touchpads ..."
Agreed.
I hate having to repeatedly swipe the wretched things to make the pointer move from one side of the screen to the other (or from the top to bottom).
I used to cringe, when I watched my friend using the touchpad on his Vista laptop.
He used to highlight items and then force the cursor to the Edit menu to select Copy and then repeat the process in a new window to Paste the selected item.
I eventually convinced him to use the keyboard shortcuts ("Ctrl + C" and "Ctrl + V").