Florists (Flowers for a new Mom =
Baby portraits, etc)
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If you actually partnered with a florist shop and/or an event planner, and a local venue - put together some packages for new brides, mothers-to-be, etc; you each use the others in the group as a 'preferred vendor'; if the customer chooses to use the whole package, they get a better deal all the way around.
Then if you're suggesting a florist shop to a new bride, you're not just asking for her business, you're helping her with her entire budget.