Shinyjiggly's tips and tricks request thread, For tutorials to be put in the magazine replacement Options

[shinyjiggly]

Hi guys! Since I'm part of the staff, I get to make some articles about some cool things that can be done in RPG Maker 2003. I'd like to know what kinds of 2k3 things you guys want tutorials on so that I don't make them on things that you guys don't need.
Keep in mind that I'm trying to do things that can be used for a variety of other uses, are moderately easy to do (not super hard, but not super obvious either), and/or are in very high demand by a large amount of posters. Also, I will not cover anything having to do with any sort of plugins, just the things possible within the vanilla version. Here's a couple of things that I can make articles on:

Making indexed sprites in GIMP (ones that actually work!)
Setting up terrain that makes noises
Password-guarded doors (using a variable)
Character swap (with an item)
Season changes (with chipsets and variables)
Making your own battle animations (and different ways to use them)

Feel free to suggest things that are not on this list. I'm looking forward to helping you guys!