Useful tips

Here is some advice about constructing models and preserving your Lego.

	Pneumatic parts Some advice when using such parts to build your own model or to build in pumps in an existing Lego model.
	Preserving your Lego Too much (sun)light and dust/durt have a negative effect on your Lego model and parts. Some tips to prevent that and to clean your Lego in a safe way.
	What to do with the boxes Think once before you open a Lego set and think twice before you throw the box away! Some reasons to be careful with the box.