Flowers always make a home seem more welcoming. Adorn your entrance with assorted annuals and perrenials to keep color year long. Petunia, Snapdragon, Lily-of-the-Nile, and 'Gertrude Jekyl' roses are great additions.
If you have a small space beetween your house and the street, try putting a low fence in front. It gives the illusion that your house is farther from the street than it really is, and it also makes for a great space for planting flowers and vines.