Search for better marking tools

Image from Sew True.com

Image from Sew True.com

It’s getting increasingly difficult to see my marks for darts and so forth. (I think the cause of my failing eyesight is this hideous grey font every web designer is so hot for.)   I found this product at the local fabric shop.  Mark-B-Gone is a fabric type paper similar to the  carbon or chalk papers but much thicker.   I used it on a dark linen.  The lines were fairly visible and came off easily on my swatch.  I did mark each side individually for better results.  Have you used this product?  If there is a white paper it would be even better on darker fabrics.  Is anyone finding the chalk paper harder to come by?

Do you have a favorite marking product that might be helpful for the visually impaired?