Ok; that´s my turn...
When i was younger, i used to drink (and not only me, my friends too), mainly, kalimotxo. Kalimotxo is a half of red wine, and a half of coke. People says that the real kalimotxo must be made with good (expensive) rioja wine and Coca Cola; on the other hand, several people thinks that the really good one is made with the cheaper tetra-briked wine you can find in any supermarket...I don´t really mind; I can drink any kalimotxo, the made with the best or worst wine, with coke light or pepsi...the only condition: it must be cold.
As Luth said, kalimotxo is a very popular drink in this part of Europe:
1) Go to the supermarket; take 2 tetra-brik of wine, a 2L Pepsi bottle and a big mineral water bottle.
2) Empty the mineral water bottle (not preferences)
3) Open the first tetra-brik, and let the wine flowing into the empty bottle...
4) When the tetra-brik is empty, take the cola and full the "water" bottle with it.
5) Shake the "water" bottle and...ENJOY IT
P.D: if you´ve not enough, you have a 2nd tetra-brik and other cola litre
But i´m not only a kalimotxo drinker, no, no, no. When i left my adolescence, i started drinking beer, solo or mixed with lemon soft drinks (we call it Lejía or cervi-kas). Fantastic when the weather is hot B)
Now, i´m coming back to adolescence and i become a big kalimotxo drinker again.
...And non alcoholic drinks...i drink orange soft drinks: Kas naranja; litres and litres of Kas...
There are several pages about kalimotxo on the web...so if you´re interested...