IKEA (which I have to admit is a nice highlight every now and then) I often come across furniture etc that would work well in a younger room as well. Here is a mix of furniture for both kids and adults, but which I feel would work well in a kids/teens rooms as well.
1. Pendant lamp PS 2014 (folds out and a must for Star Wars lovers) / 2. Table mirror PS 2014 (perfect for girls jewellery) 3. Sundvik Children's desk / 4. Stuva Storage Bench / 5. Gunggung Swing / 6. LED stool lamp PS (lamp with cosy mood light and stool you can sit on) 7. Knobs, assorted colours PS / 8. Vågö PS Easy Chair / 9. Lövås PS Chair-bed (perfect for sleep overs) / 10. Clothes hanger PS / 11. PS series, Bedlinnen / 12. Mandal chest of 6 drawers.