Type an Ascii character in Windows, Alt Codes, Useful Links

If you're like me, you have a fairly limitted selection of special characters that you want to insert into your documents or messages on a regular basis.

There are several ways to do this, as outlined here:
http://www.timeatlas.com/5_minute_tips/general/making_cents_of_special_characters#.UV7QyFeS8hV

I've taken to using alt-codes for the ones I use most frequently.  Memorizing a few of these can be a big time-saver.  Good list here:
http://www.alt-codes.net/

Some of the ones I find most useful:
ALT-3        ♥
ALT- 14     ♫
ALT - 126   ~
ALT - 236   ∞
ALT - 241   ±
ALT - 242   ≥
ALT - 243   ≤
ALT - 0162 ¢  (Not in the linked page - look here: http://symbolcodes.tlt.psu.edu/accents/codealt.html)
ALT - 0169 © (Not in the linked page - look here: http://symbolcodes.tlt.psu.edu/accents/codealt.html)
ALT - 0174 ® (Not in the linked page - look here: http://symbolcodes.tlt.psu.edu/accents/codealt.html)

Those who write Spanish will find these useful:
¿  ALT-168
¡  ALT-173

There are also some accented letters you can check into, found here:
http://symbolcodes.tlt.psu.edu/bylanguage/spanish.html