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Embroidery needles used for cross-stitch are often called cross stitch needles or tapestry needles.
Cross stitch needles come in different sizes depending on thickness. Most commonly used size is 24. It is the best choice for stitching on 14-count aida.
A tapestry needle is a hand sewing needle with a blunt end and a large eye.
You don't need a sharp needle to use with an open weave like Aida.
The rounded tip of a tapestry needle is important because it helps to ensure you don't accidentally pierce the threads of the fabric.

For sure you are want to beautifully display your finished cross stitch, embroidery or needlework projects.
The easiest way to do it is to put them in a frame.
Just choose a frame that complements your design and a neutral mat color for the mat next to the frame.
Before framing make sure you have enough extra fabric around the design.

To prevent the floss from tangling, pull it gently but firmly. In case of knot insert tip of the needle downt though the tangle, and then pull it gently, it helps in most cases.

In order not to lose the needles for cross-stitching, you can glue the magnetic strip to the inner lid of the box in which you hold the embroidery threads and other cross-stitch accessories. You will no longer lose them and you will can easily find the right needle.

Nobody likes to rip out stitches. But it would be better if you fix them right away. If you wait, the error may increase and the damage for your cross-stitch project may increase too.