We don't do fights very often. When we do, we occasionally use a map, if it's complex, but normally don't bother.
This sounds rather dull. What do your campaigns consist of? Walking around and talking to the townspeople etc? A fight a day (plus any monster creepings if resting in an open area at night) is about what I like. Keeps the story moving, adds some excitement, and lets the people level up for the fun fights I have planned later.
It depends. It's a mixture of fighting, exploring, politics, mystery, horror, and more. Especially at higher levels, we generally do one or two fights each game, and then a lot of other non-combat stuff.
We've had a once/week campaign going for over 2 years with the same players, so I assure you it isn't dull. Combat is pretty dull, most of the time, so we don't focus on combat.
In other news, we started a Pathfinder campaign on Friday to fill in the days when not everybody can make it to our usual 3.5 session. So far, I like it.