When you are entering formula, the F4 function key will toggle through the 4 possibilities of $ or not on row and column. I don't know if that is easier or harder than typing the $ where required, but it is another way. If you are editting a formula, you can put cursor on a variable (between row and column ref.) and press F4 to toggle.
Relative vs absolute addressing is a PITA and easy to make a mistake. Good news is that its pretty easy to edit.
9/11/2001 - You have awakened a sleeping giant, and filled him with a terrible resolve. - paraphrased from Yamamoto