Plants over plants over plants?

Plants over plants over plants?

Hello, everyone! It's fall and I'm having fun planting some bulbs. I think I have about 40 bulbs of daffodils to scatter around the yard. You can never have too many daffodils! But anyway, since bulbs are mostly spring blooming, then die in the early summer, I didn't want the ground space to go to waste. I've read in gardening books that it's a good idea to put a perennial over a bulb so that as the bulb foilage is fading, the perennial is beginning to perk up for summer. Judging on the time the bulbs are up for, what types of plants would you recommend putting over? For daffodils? What about allium with thier longer bloom time? Anemone? Crocus? Thanks in advance! Also, some quick questions: What is the definitive meaning of "deadhead?" Is it just removing the spent flowers? What does it mean that daffodils "naturalize?" Would it be better for some miniature rose bushes to ride out the winter in my garage (have them die, etc?) or let them keep blooming indoors? EDIT: I'm in Zone 6, sorry for any confusion in recommending plants!
How’d he get aaalll the way over there?

How’d he get aaalll the way over there?

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My Room =)