I decided to give my car a good wash today, and noticed a few very fine silver lines on my bootlid and on the doors. I finally realized the lines are coming from peoples jewelery (and studs on jeans and things like that) A few I was able to get off with my rag, but some are still all over the car.

Can anyone recommend a product or a good way how to get them out?

Thanks in advance.

 

sure can!!

first we need to know specifically what parts you are talking about-
for the paint, the solution is polish. the most difficult detailers job... great info, including videos, in our how to section at the top of our board.
check them out then post back questions. this is probably a machine job-

if any of your scratches are in the boot (just realized that you might not be meaning the same part by boot as we do over here)- the solution is different.

again, first step is to clarify where on the car the scratches are, and read the how tos.
then post back and we will help you with the next steps