Natural light is a major mood booster, not to mention a major selling point in any home. The warm kiss of sunlight indoors will make your space feel bigger, cozier, and way more put together than any dimly lit fluorescent light bulb ever could.
I love this idea. An envelope guest book. You just take a store-bought scrapbook/album and glue envelopes into it. Lay out colored pieces of paper for guests to jot notes down on, and then they can place them in the envelopes.