DIY: Thread Spool box- you could just use an old shoe box and then cut out a rectangle that fit the bottom. Put your desired amount of nails into it, and glue the rectangle with nail's head on the bottom down. Then paint the box.
Spice up your wardrobe with a mix-and-match approach to interior fittings. Open units like KALLAX can help store rolled up towels and blankets, while something as simple as a cut up egg tray can keep jewellery and small items organised.