Every holiday I have had has been brilliant in different ways, but the one single one which sticks out would probably the first time I went Inter-Railing, with my girlfriend, a small tent, and two rucksacks, and a bottle opener.
I didn't have a single worry for a whole two months!
Ruka in Lapland. Spent Christmas there in a log cabin. There's skiing, snowboarding, huskie racing (the dogs love racing) and reindeer farms. We enjoyed it, but I don't think it's everyone's cup of tea.