Upvote:1
Electric adapter, international credit card, camera, medicines you may be using, and hygiene items like shampoo, toothbrush and toothpaste.
Upvote:1
In addition to what @hooray suggested, which is absolutely perfect:
Also medicines are preferred in their original packaging. Don't worry too much about hygiene products, they are easily available in Germany although much more expensive than in Colombia (I've been to both last year). For the credit-card, they use Chip-and-PIN cards.