Ctrl + Shift + Esc - Brings up the task manager
CTRL and A Selects all the items in the active window.
CTRL and C Copies the item or items to the Clipboard and can be pasted using CTRL and V.
CTRL and F Displays the Find all files dialog box.
CTRL and G Displays the Go to folder dialog box.
CTRL and N Displays the New dialog box.
CTRL and O Displays the Open dialog box.
CTRL and P Displays the Print dialog box.
CTRL and S Displays the Save dialog box.
CTRL and V Pastes the copied item or items from the Clipboard.