You are not a superman. But as an expanding entrepreneur you have to act as the one by doing this duties :
Accountancy : budgeting, invoice payment, monetary planning, credit management.
Administration : purchasing, correspondence, archives, receptionist, debt collector.
Computer : data input , word processing, contact management, software student
Correspondence : advertisement copy, letters, mass media
Employees : expulsion and recruitment, training, motivate, remuneration
Treatment : other equipments and office, appliance, vehicle, building
Trouble-Shooting : problem solving, quality control, customer service
Sale : marketing, promotion, advertisement, delivery service, continuation perpetrator
Supply : inventory control, goods consignment, stowage
Your duty : finishing all that above is very important beside earning yields.
Regard,
--Evi