Here are a few AutoLISP routines I have written to help speed up your AutoCAD drafting.
To use these programs, appload them and then enter the given command to use it.
Case - This lets you change the case (upper or lower) of all the text on a drawing. (usage = case)
Bracket - Draws a '}' bracket automatically, of different sizes. (usage = bracket)
Y - Draws a pipe-end (ying-yang) symbol. (usage = y)