The Oregon Coast requires layers. It can be quite breezy and with the wind coming off that 50 F degree ocean, it can be nippy. It is especially cool in the morning and after the sun does down. Hiking boots are best for tackling trails to waterfalls but sandals can come in handy for the beach.
Photo Equipment: A wide angle lens for those atmospheric beach shots and a zoom for sea lions and birds.
Camping/Beach/Outdoor Gear: A tent will greatly reduce the cost of your trip and with so many great campgrounds on the Oregon Coast, why not take advantage? Bring a warm sleeping bag for chilly nights and a mat for your best comfort. If camping, you will likely even need a warm hat for the breakfast shift. Oh, this is in summer. In winter, I guess it's more stormy and time for a B & B.
Miscellaneous: D was at her best on this most relaxed part of our six month trip. Give her some ice cream and she's one happy camper. :)
Luggage and bags:
Your choice. No one else will care.
Clothing/Shoes/Weather Gear: Winter time on the Oregon coast means be prepared to get blown off the map with potentially high wind and driving rain. On the other hand, if its a nice lull between storms, long sleeve shirt and jeans, sneakers that can get soaked in the waves (watch those waves!!), a snug hat (or you're going to lose it), a rain slicker handy for the beach on 'iffy' days, maybe a pair of knee boots (for the waves to fill up and insulate your feet), lots of nice, dry, clothes to change into after you've done 'the beach thing'.
Toiletries and Medical Supplies: Sun screen, skin/hand lotion, mole skin.
Photo Equipment: Pictures of the sunsets off of the bluffs and on the beaches are some of the best anywhere around the world. A tripod to do those low light shots, 200/400 film (I prefer slides, not prints), a plastic bag to 'house' the camera in if it begins to mist on you and you may want to play with colored filters, if that's to your liking.
Camping/Beach/Outdoor Gear: If you've stayed in a tent, on the coast of Northern California, Oregon, Washington, you KNOW the meaning of 'high humidity'. Just be prepared for dampness, rain or shine. You want to stay warm, so, wear breathable clothing at night, in the sleeping bag. Don't plop that tent down anywhere near the high tide mark or you could end up asea by morning.
Miscellaneous: A waist secured drop sack to drop all the goodies into . An old gardent rake to scratch the gravel around and help you decide if it is worth bending over for 'that one', or not. Have clean, dry clothes in the car waiting for you along with a Thermos of HOT something or other. You'll be tired, if you've been at it all day, so have someplace to retreat to BEFORE exhausting yourself that day.