not really, just make sure you have the appropriate blade. A general
purpose demolition blade won't last long, you need a fine toothed blade
for metal (24tpi sounds about right, so you should be ok). Buy a bunch
of blades, change them as soon as they start getting dull. Speaking
from experience, when in a tight space, you'll find yourself using only
about 1" of the blade and the teeth in that short section get worn off
very quickly. Otherwise, time and persistence are about all you need,
sorry - there's no easy solution that I've found yet for such a
situation.