In this post and your first one you seem to be equating "project" and "list". But they're not really the same thing. I may be misunderstanding, but I'm going to talk on for a while anyway.
To steal the definition from elsewhere on the site: "Projects are defined as outcomes that will require more than one action step to complete and that you can mark off as finished in the next 12 months."
So your businesses wouldn't be projects--they will presumably be around for more than 12 months, and a business will have a large number of different desired outcomes. For example, the outcome "Up and running in a storefront" and the outcome "Manufacturing cost for Widget 4 reduced to sixteen cents" are very different outcomes, even though they might support the same business. So they would be at least two projects, and very likely more. (Because "Preferred storefront identified" and "Store fittings purchased and installed" are also two different outcomes--setting up a storefront might involve dozens of projects.)
I return to my earlier example, add more actions, and use the outcome phrasing (probably badly, because I usually don't use outcome phrasing, even though my projects usually do have a clear outcome). Looked at by project, it looks like:
- Project/Outcome: I am informed about business liability insurance.
-- Action: Contact Joe for two quotes, one for each business. Context: Phone
- Project/Outcome: I have a preliminary knowledge of the process of selling at the Saturday market.
-- Action: Talk to Jane (Dahlias R Us) about her experience. Context: Phone
-- Action: Talk to Joe (Tomatoes Tomahtoes) about his experience. Context: Saturday market
- Project/Outcome: I have a preliminary knowledge of the desires of restaurant customers, re flowers.
-- Action: Ask Fred's cousin Charlie (Burgers R Us) what he pays for those table bouquets. Context: Phone.
-- Action: Google for articles about organic flower producers and their customers. Context: Internet Research
- Project Outcome: I have identified the local CSAs
-- Action: Google for local CSAs. Context: Internet Research
- Project/Outcome: Increase my knowledge of flower farming through reading.
-- Action: Get a copy of The Flower Farmer Context: Internet Shopping.
This is just the first one or two actions per project--as time goes on, more actions will be added and worked.
So, above we have seven actions, organized by project. But we could instead organize them by context:
Context: Phone
-- Action: Contact Joe for two quotes, one for each business.
-- Action: Talk to Jane (Dahlias R Us) about her experience.
-- Action: Ask Fred's cousin Charlie (Burgers R Us) what he pays for those table bouquets.
Context: Saturday market
-- Action: Talk to Joe (Tomatoes Tomahtoes) about his experience.
Context: Internet Research:
-- Action: Google for articles about organic flower producers and their customers.
-- Action: Google for local CSAs.
Internet Shopping:
-- Action: Get a copy of The Flower Farmer
This way, when you're at the Saturday market, you have a handy list of actions for that context. If you've carved out some quiet time with your phone, you have a handy list of actions for that context.
If you were using paper, you'd have to have project lists AND context lists, to get this, and you'd do a lot of rewriting. This is one of the advantages of a tool like OmniFocus--you can display your actions in several different ways.