It's only 14 more days till Christmas, so if you still haven't found all of your gifts (or if you still haven't started buying them) I wouldn't wait too long.
To help you along a bit I've taking a browse through ASOS and collected a few ideas. This is the first part, which is clearly a gift guide for Her. The first 8 gifts are all under €15 and the others are under €50.
These are of course inspirations, you could easily get a different book, phone case or cushion.

Stay tuned for the male gift guide, that one should be up Saturday!

1. Poodle Socks €4.29 - 2. Alphabet Candle €4.29 - 3. Mini Hand Cream €5.00 - 4. Note Purse €5.71 - 5. Christmas Socks in Bauble €7.14 - 6. Headband €7.86 - 7. Mittens €10.00 - 8. Beanie with Reindeer Antlers €10.00 - 9. Hand Care Essentials €11.43

1. Perfume Jewelry Box €35.00 - 2. How To Be Parisian Book €25.00 - 3. Iphone Case €42.86 - 4. Cushion €50.00 - 5. Diary 2015 €17.14 - 6. Nail Polish Set €37.86 - 7. Laptop Case €25.71 - 8. theBalm Eyeshadow palette €40.72