<p>I know most colleges require 2 or more teacher recs, but if I could get a really good rec from an employer along with teacher recs, would that be something to include with applications or is that overdoing it?</p>
<p>A rec letter from an employer will count as a supplemental letter, it probably won't be considering a teacher rec letter. If it's good, send it in. Three letters is by no means superfluous. Maybe 4 or 5, but not 3.</p>