Where we got it wrong

Newest first. Nothing is removed from this page.

Every budget written up in public is a budget that worked, which is why so few of them are any use. This is the other list: the envelopes set wrong, the rules broken, and the two or three occasions where the system did what it was supposed to and we did not. It is kept because we keep making the same three mistakes and it is cheaper to reread this than to rediscover them.

• Aug. 30, 2026Left the utilities envelope $20 light rather than re-cut it mid-year. Logging it as a mistake is arguable — the rule worked as intended — but four consecutive overspends is four months of the ledger telling us something we already know, and there is a version of this rule that allows a one-line annual correction in September. We are not adopting it yet. We are writing down that we thought about it.
• Aug. 3, 2026Discovered the emergency vet is $124 more than the regular vet for the same twenty minutes, at the point of paying it. We had never looked up the after-hours rate. Ten minutes of reading in February would not have changed the decision but would have changed how surprised we were.
• July 12, 2026Went to a wedding we had known about since February with nothing set aside for it. $240 out of a $110 envelope. The gifts envelope is an average and averages do not know about calendars; anything with a date on it belongs in a sinking fund, and this one is now on the list for the March re-set.
• June 21, 2026Booked a dental cleaning without checking which pot it came from, then spent twenty minutes arguing about whether $130 was health or dental. The rule now is that anything a dentist bills is dental, including the parts that feel medical. Written down because we will forget.
• June 2, 2026Moved $40 from eating-out into groceries on the last day of May and recorded it in neither place, which is how the May reconciliation came out $40 wrong and cost an evening to find. The permitted mid-month transfer now has to be typed into the shared note before the money moves, not after.
• May 28, 2026Ran the grocery envelope dry on the 24th because the shared note had not been updated in nine days and both of us thought there was $70 left. This is the single failure that changed the system: the note is now updated the same day, every day, and it has not happened since.
• Mar. 7, 2026Set the grocery envelope from a trailing twelve months that included November and December 2025, when one of us was working nights and we ate almost nothing at home. $620 was about $80 low for a normal month. We have kept it anyway, and it has held since May, which suggests the trailing average was closer to right than it felt at the time.

The pattern, such as it is

Five of the seven are the same failure wearing different clothes: a cost with a date on it, sitting in an envelope that only knows about averages. A wedding in July, tabs in November, a dental cleaning whenever the hygienist has an opening. The envelopes are good at the recurring and bad at the scheduled, and every time we forget that, the buffer pays for it.

The other two are both about the shared note being stale. That one is fixed, as far as we can tell, and it was fixed by making the note easier to update rather than by resolving to update it more often.