You could always just bookmark this
thread and copy and paste the character from one of the posts.
In windows XP, you can find the character map by clicking: Start, Programs, accessories, system tools. If you are not already using it, switch to the Times New Roman Font. You have to scroll down a little on the character map to find the Ω.
There is also a web site I found by Googling Alt Codes.
Ultimate Cool Characters: Special Alt Codes and More
There is a printable list with many neat alt codes.
♠ ♣ ♥ ♦ ♂ ♀ ¾ ≤ ≥ Etc.
I am especially glad to find the codes for vulgar fractions such as ¼, ½. But I can't seem to get the eighth or third fractions to work with the codes listed there. It gives me [ for 1/8 and S for 1/3
Also, you definitely have to turn on NUMLOCK and use the number pad on the right
Thanks again Bruther and Trioxin. I had completely forgotten about the character map.