Going to Scotland

The little Mrs and me are going to Scotland next week for 14 days, it's her 60th birthday trip.
We will be all over the northern half of the country, away from the big cities.
Anyone have any advice or travel tip's? Cool places to see etc.
Thanks in advance

Bring warm clothes! We went in August 'a few' years ago (1990) on the way home from Egypt...'bout froze our butts off ;-)
Scotland it beautiful! For (relatively) cheap lunches, look for bakeries and get the meat pies. Way cheaper than a pub lunch.