Arrangements approved by Mother Nature
Many bulbs, especially daffodils, look best when planted in clumps of odd numbers of bulbs. Tiny ones, like crocus, are traditionally scattered upon the lawn, each one planted where it fell. Unless some landed closer together than the recommended spacing; they look more natural this way.
Daffodils could actually be planted in this manner also. The bulbs will divide and multiply over the years if they like their site, and receive supplemental fertilizer each year.