Re: tracing

The effort tracking you down will depend on what the letter says. Assuming worse case scenario. Use globes, do not lick the stamp/envelope, wear a bathcover/headcover to avoid one of your hairs getting into the envelope or paper, once you have printed the letter do not send it, photocopy it instead and send the photocopied part. When you post the letter watch out for CCTV around the letterbox, watch out for people seeing you with gloves posting a letter, watch out for your clothing fibers getting stuck to the envelope, ideally keep the envelope sealed inside a plastic bag until you post it. Suming up: Saliva, fingerprints, clothing fibers, CCTV, people and bad luck.