Alternative to dry ice???

I have a fogger, but it's large and it may be too much fog.

Any ideas?

If you have a timer for your fog machine (or can get one before the big night), you can control the duration of the blast as well as the interval at which it blasts. That may help you limit the fog content, plus its automated so you don't have to sit there pressing a button.

Ever notice how really good low lying fog is sort of the holy grail all of us Halloween Haunters are after...