This article has a ton of ideas on how to make your house smell yummy. Here are just a few:

Mix 1/4 cup baking soda with water in a spray bottle. Shake well and spray. The baking soda absorbs the odor. You can also add a little scent if you want. (I use vanilla extract. It smells great and drives men wild for some reason)

Spray undiluted white vinegar in the air. The vinegar smell evaporates very quickly taking odors with it.

If you use dryer sheets, you could put them in the vents. This will not work if you have baseboards. They will freshen the air as it comes into the room. You can put them in fresh or after they've been through the dryer.
If you burn scented candles, save any wax bits left over and add them to a wax potpourri burner. If you mix scented and unscented, they will last longer.

Bake. It makes the house smell good and you get something to eat as well.