It may seem easy to purchase your own groceries but there are many people who do not have the time and think it is a chore rather than a pleasure. Many people are willing to pay someone else to do this type of task for them. So consider starting a Flyer Delivery Service to shop and deliver their groceries to their door.
It could be easy to deliver groceries for people who are disabled or unable to shop for themselves. But there is also a need for these services from busy young professionals.
This additional market segment can influence how you promote your services. It would be worth setting up a website where people can make their shopping selections online and request a specific delivery time.
There are many organizations in the US that offer to help you setup a website and start a business. This could helpful if you are not skill in these areas.
Having a website where people can order groceries online could grow to become very successful. It could become a convenience that many people of all ages would want to use and you could grow to a large scale very quickly.
If you want to keep things smaller you could just promote yourself through word of mouth. Pass out your business cards and distribute flyers. If you focus on a specific market say the elderly then a website may not be necessary in the beginning.
If you want to grow and have a larger market then a website that is focus on the younger busy professional. Then your marketing efforts will be different than those of focusing on the elderly.
Understanding how to actually deliver the groceries is another consideration. So make sure you review all the requirements for your business and ensure you will have a steady cash flow.