Always, with my better shoes...I have a polished steel one with an 8 inch wood handle and a cotton lanyard attached to that...it sits on the little end table next to the chair where I sit to put on my shoes. Now, having said all that, I do have beater loafers and Sperry boatshoes that I wear to walk the dog, and I just slide those on without the help of the shoehorn.
On a side note, the ONLY shoes I don't un-tie before I remove them are the crappy old Asics running shoes I wear to mow the lawn.