To celebrate this Labor Day spend a few moments documenting the types of work your ancestors did. Choose one and find out what you can in a quick online search about what the job would have entailed and what the conditions would have been like during that time period.
Do you know any job-related stories passed down from any of your ancestors? If so jot it down NOW. You can edit it later but for now just get it down. So much family history is lost because we're waiting for a time when we can write it all down properly and polish our prose and we simply never get around to it. Even if all you leave behind are sketchy first drafts subsequent generations will appreciate your efforts.