Usually I don’t need birthday reminders, but it did happen before that I forgot a friend’s birthday date. Currently I use Google Calendar for birthday reminders. The best thing about Google Calendar is that you get SMS reminders to your cellphone (all major Israely cellphone service providers are supported), so you don’t have to login to get your reminders every day.
There is one small caveat, though. Initially I set birthdays to be all-day events, but then I started getting the reminders for them around 5am. So what I do now is set the birthdays as zero time calendar events around noon, therefore getting the reminders at sane hours.
That’s great! I always wanted something like this that would send me an email.