Great link, Polly! Thanks for sharing!
The floral designer in me keeps me always considering matching up bulbs with the surrounding perennials, to the point of being almost OCD about it, LOL. The way I go about it these days is to have specific color combinations in mind for each garden bed. Then when the bulbs arrive, there are only certain beds where they can go. I like blues, purples, and whites with everything, so those are "as the spirit leads", LOL.