Starting point
Identify materials needing special care and keep manufacturer instructions near supplies. Explain permitted products instead of trying something because it suits a different surface.
with several people sharing a kitchen
Agree storage for each user, worktop handover times and who reviews the ingredient list.
setting responsibility boundaries
Distinguish agreed duties from work needing permission, qualifications or a different provider before starting.
Checklist
Selections are not sent or saved.
Before agreeing
Do not mix cleaning products and follow their labels; damage treatment and specialist work require an appropriate provider.