One, at http://www.hassleme.co.uk http://www.hassleme.co.uk has a free, simple and painless email reminder system - "we'll nag you via email at semi-unpredictab

One, at http://www.hassleme.co.uk http://www.hassleme.co.uk has a free, simple and painless email reminder system - "we'll nag you via email at semi-unpredictable intervals" (of N days, plus or minus a few).