like Christmas, Halloween , events
Your phone should be usefull, it has a calender and there you can set up the dates and it has this thing where you can have it remind you one hour before, or two hours, or days before as well. Its usefull and also very easy to manage.
idk if this is what you're really asking, but you could always set up dates/events on the calender in your phone... which would notify you your plans when the time comes
There should be a calendar on your computer, and definitely on your phone, which have reminders and you can put dates like christmas and halloween into it easily.
If you go to yahoo.com and set up the calendar in "My Yahoo", you can have an email or mobile alert sent to you when certain important dates are coming up.