Perhaps my question should have been less open-ended. Any human looking at the calendar would agree on Feb 4, I think. I'm wondering how Reporting Services would interpret the "First Week" specification in the subscription. Are Fri, 2/1, and Sat, 2/2, part of the last week of January? Or do these two days constitute the first week of February?
Bottom line is, I'm trying to create a schedule that will run reports on the first Monday of every month. Might some kind of data-driven subscription do the trick?