Data Entry & Documents
Records that need updating. Lists that need building. Suppliers and prices that need comparing before you can decide anything. None of it is difficult. All of it is time you do not have.
One wrong digit undoes the entire exercise, so anything important gets a second pass before it comes back to you. Where a rule is ambiguous we ask rather than guess, and the answer gets written into the process so it is only asked once.
Work comes back in your own spreadsheet, CRM or drive, named and filed the way you file things. No new system to learn and nothing to migrate afterwards.