A charge you already settled surfaces a second time this weekend, a duplicate hold or a re-sent invoice, and it clears itself before the call you'd make about it would connect.
A slow indoor Sunday will tempt you to leave the day shapeless, and by afternoon that shapelessness turns to restlessness. One ordered thing done early, the counter cleared, keeps the drift from turning on you.
The tank reads low the next two or three days, a flat stretch where the body wants less asked of it. The shallow spot is the breath, up high, and the warm damp outside won't help it.