Number 3- Wall Hooks. Hang some beachy "stuff" from a row of simple hooks in a hallway or entry...not only does it look coastal, but it's functional storage. Go to a thrift shop or discount shop and pick up a straw hat or two, add a woven beach bag and some simple towels to finish off the look.
Our laundry room hooks hold a straw beach bag, several beach towels and a collection of straw hats hanging above.
Here is a more colorful version of the same type of wall.
In the winter, your hooks can be changed to hold jackets, sweaters, coats and scarves...hooks are super versatile and kind of fun to "accessorize" for the seasons!