What would be a good idea for a small business?

Don't dismiss the network marketing business. Some "MLM" opportunities are very legitimate and professional, with quality products of real value. Unfortunately they are often disregarded due to the negative image created by those programs that are less than reputable. There are a number of significant advantages to starting an MLM operation compared to more conventional homes based businesses. Here's an article that describes these benefits (and does not promote any particular MLM program), found in the related links below.