Backstory: Small businesses need their offices cleaned. Often times they may not need a full blown cleaning staff provided by the management company.

The Idea: A platform for people to clean small offices.

Deep Dive: You would build a two sided marketplace for users to signup as cleaning providers and small business owners in need of cleaning. Business owners could set a price and cleaners would agree to clean the offices at said price.

You could go further and create an auction situation where multiple cleaners can bid on a job. You could also support longer term contracts.

Validation: Small businesses already outsource their cleaning services.

Monetization: You could charge a per visit fee and take a small percentage for long term contracts.