1 Use cash when possible - everything else reveals your spending patterns to someone.
2 Ask Telecom Eireann to make you ex-directory; this will protect you from direct marketeers and data cross-checkers.
3 When filling out applications for store cards and the like, don't be afraid to use a false name.
4 Always give as little information as possible - just write "n/a" whenever you don't feel like answering.
5 Be especially careful not to give a date of birth or a phone number - these are the most commonly-used cross-reference points.
6 If you must give your real surname, use initials instead of a first name. Make up new middle initials for fun.
7 On product surveys, try to give at least one false answer for every true one.
8 Consider choosing a lowest income category on forms - in general, the poorer you are, the less interested a junk-mailer is in you.
9 Ask junk mailers to de-list you. If this does not work, write "deceased" on all junk mail and send it back, freepost. If this fails, start sending old newspapers and household junk to the freepost address.
10 When using the Internet, use a fake name and address as much as possible - everyone else does. After surfing, always clear your "temporary Internet files" folder.