If you're thinking about starting a business, you likely already have an idea of what you want to sell, or at least the market you want to enter. Do a quick search for existing companies in your chosen industry. Learn what current brand leaders are doing, and figure out how you can do it better. If you think your business can deliver something other companies don't (or deliver the same thing, but faster and cheaper), you've got a solid idea and are ready to create a business plan.
Small businesses have a tougher time getting approved due to factors including lower sales volume and cash reserves; add to that bad personal credit or no collateral (such as real estate to secure a loan), and many small-business owners come up empty-handed. Getting funded takes longer than other options — typically two to six months — but banks are usually your lowest-APR option.