If you want to promote your mod, a big part of it is showing off your mod - visually. But just taking screenshots or recording a video isn't enough. If you want to show photos and trailers of quality, or how to get those downloading your mods to see how amazing your mod looks (we'll make it look amazing), start here.
I'm sorry for the weird title. What this is about is a quick tutorial on how to create a script that will do one thing if the user of your mod has SKSE installed, and something else if they don't. I might include this in the Common Modding Questions post as well, but I thought this deserved its own post. It's a fairly simple process, but one that could help add a lot of functionality to your mod without having it require SKSE.