As a GM I very rarely use minis, maps, or other aids for keeping track of location in combats. It is not that I don't see the strengths that those items have, nor understand what they can bring to a game, but rather I usually either can't be hassled with it, or simply don't have the space for it. Coming up as a gamer, table space was usually at a premium and we rarely had the room to set down a proper map for measuring out character movements and things like that. As such, distances were a lot more, well, arbitrary. It wasn't worse or better, it was just different.
What about you though? Do you use the minis and maps? Or like me, do you usually just go with arbitrary and shady numbers you keep track of in your head? Do you feel you gain, or lose, anything by doing it the way you do? Do you prefer having the sureness of an answer that "yes, you can definitely reach that guy in one round" or like being able to fudge it for dramatic purposes? Is there a particular reason you handle things the way you do? Or is it just how you do it and you never thought about it much?
Let us know!