Delete/cut to a buffer:
dd - delete entire line
db - delete a word backward from the cursor
dw - delete a word forward from the cursor
d0 - delete to the beginning of line
d^ - delete from the cursor to the 1st character of line
d$ - delete to the end of line
gG - delete to the end of file buffer
d} - delete entire paragraph
d3b - deletes 3 words back from cursor
d3w - deletes 3 words forward from cursor
3dd - delete 3 lines
dW - delete a word including adiacent punctuation
D - delete to end of line
x - delete a char (delete button)
X - delete a char (backspace button)
10x - delete 10 chars