Claude Cowork: Personal

Find forgotten online accounts from old signup emails with Claude Cowork and other AI agents

Ben Patterson wanted to know how many forgotten accounts were left over from years of testing products. For PCWorld, Patterson gave a prompt to Claude Cowork, Gemini Spark, Meta's Muse and a ChatGPT Dot: search the last 5 years of email for welcome, verification and password-reset messages, build a spreadsheet of services with first and last email dates, whether the service is on haveibeenpwned.com's list of breached sites, and its official account-deletion link, with the most dormant at the top, and don't sign in, reset passwords or contact anyone. All four returned spreadsheets in five minutes to half an hour; each found at least 50 accounts, and the ChatGPT Dot found 73. Patterson found accounts they'd forgotten, such as a Bowers & Wilkins account from 2022. About half the deletion links came back 'not found' or pointed to privacy FAQs.

Cancel unused subscriptions from credit card statements with Claude and Claude Cowork

Edgy, who posts as The DeFi Edge, uploaded credit card statements to Claude and had it organize every subscription into a spreadsheet, then used Claude Cowork to cancel them, or draft the cancellation email where there was no cancel button. Claude also suggested free or cheaper alternatives to some big-name apps. After a few hours one morning, Edgy reported saving $5,877 a year so far.

Prepare and file a property tax grievance on deadline day, between meetings, with Claude Cowork (partial)

Wes Pomeroy's town assessment had nearly doubled since they bought the house eight or nine years earlier, and they realised the last day to challenge it was that day. Using Claude Cowork connected to Gmail, Google Drive and Chrome, they first asked about the official rules and deadline, which turned up that a mailed form wouldn't count: it had to be handed in in person by 9 PM. Claude found an old broker appraisal, the assessor's email about a renovation and the addition's square footage, and cut a weak argument about crime risk that had no data behind it. It filled the official form, drafted a cover letter, built a comparison page and a labelled photo exhibit and merged them into one file. Pomeroy says the first pass was about 65% right and corrected it several times. Both owners signed and the packet was stamped at the assessor's office before the deadline. The post doesn't give a result yet.

Estimate the year's federal, state and local tax still due from a folder of tax documents with Claude Cowork, before the accountant reports

Anthony Garcia's taxes had got complicated enough that Garcia hired an accountant, who was still a month and a half away from giving the full picture. Garcia copied all the tax files, some electronic PDFs and some scans of paper copies, into one folder, pointed Claude Cowork at it and asked for an estimate of the 2025 taxes due. Claude read all of them. In 30 minutes it produced a summary table of tax liability, amount withheld and balance due, with a thorough breakdown that referred to boxes on the tax forms.

Let Claude Cowork tidy a family desktop, and lose 15 years of camera photos until iCloud recovery brings them back

Nick Davidov asked Claude Cowork to organise their spouse's desktop. It asked permission to delete temporary Office files, they agreed, and then it said "ooops": while renaming, it had deleted a folder with every photo the spouse had taken on their camera over 15 years. The deletion was done in the terminal, so nothing was in the Trash; iCloud had already synced the new structure, there was no Time Machine backup, and disk recovery tools found nothing. Apple pointed them to iCloud's recovery feature, which keeps removed iCloud Drive files for 30 days, and the photos started coming back. Their advice: don't let these tools near anything hard to repair or not under version control.

Rename a pile of train tickets by date and destination with Claude Cowork

Claude Cowork read a pile of train tickets and renamed each file by its correct date and destination.

Turn an inbox into a daily to-do list with Claude Cowork (abandoned)

Claude Cowork summarized the poster's email into a to-do list, but the list grew long and unmanageable, so the poster stopped reading it and turned it off as a waste of tokens.