Closing the jaws on spare evenings is only useful if the hold is honest. A platform fee, a tool you already bought, and an hour of unpaid setup all sit in the opening with the work. If those pieces are ignored, the evening looks richer than it is.
Write three numbers after the block ends: money received, money spent to do the work, and hours used including setup. Divide what remains by the hours. That figure is the rate for that evening. It is not a forecast for next month. It is a reading of one hold.
Pressure that belongs on the list
Software subscriptions used only for the side block, paid ads that sit inside the same week, and shipping materials for a one-off order belong on the list. A laptop bought years ago for the day job does not. The aim is pressure that moved with this clamp, not a full business ledger.
What the number is for
The rate after pressure answers a simple question: was this opening worth the sleep it took? If the number stays thin for several weeks, the jaws may be too wide, or the work may not fit leftover time. Bar Clamp does not publish earnings promises. The clamp is a measuring tool, not a sales pitch.
Read next: a stop before crushing the paid day and when side work loosens the main hold.