Take a camera. On a sunny day take lots of pictures. On the other 364 days take some pictures too but be prepared to be wiping your camera dry a bit more often.

Wear a kilt. Everyday. Yes you will stick out from the locals, but you will stick out as a tourist in your regular clothes anyway as soon as you open your mouth or pull out your camera or walk into a souvenir shop. May as well be kilted and in the right spirit, showing your heritage and respect for the Scots national dress. Beside it actually starts a lot of interesting conversations with both tourists and locals, and provides fodder for good photos whether the sun is out or not. Otherwise plan on dressing warmly everyday---you can always take clothes off if you get too hot but if you don't have them you cannot put them on if it gets cold or rainy (excuse me---"When" it gets cold or rainy).

Although it is worth spending some time in the cities to see the major sites, GET OUT OF THE CITIES and see the countryside through your own eyes (and camera lenses). IMHO the best way is with a rental car, a good map, a navigator, and a loosely preplanned route and list of activities each day.

Attend a highland games, if at all possible.

Most of all enjoy yourselves, each and every moment, good or bad, rain or shine, every meal, every drink, every site, every smell, every sound, breath it in and let it become a part of you, bath in it and wear its scent on you proudly.

Oh, and post pictures, because here at xmarks: NO PICS, IT DIDN'T HAPPEN!!