What's your favorite mootools widgets and plugin

Question

Hi people,

I'm still new with Mootools. I'm trying to collect informations regarding the good and worth using Mootools plugins out there around the net.

Please list your favourite Mootools widgets and plugins.

One widgets and plugins per post only please so others can vote.

Answer 1

Slimbox (Lightbox clone, but more responsive UI).

Answer 2

Clientcide libraries. Very useful stuff (though I only used the FormValidator yet).

Answer 3

meteora mootools widgets http://meteora.astrata.com.mx

Answer 4

I used this Autocompleter recently, and it's quite simple and do it's job well.