Recently I was playing around with the Dojo Toolkit and encountered some issues while adding a Combo Box to a web application. The following is a short list of things I learned (while banging my head against a wall several times)...

• Don't forget to add class="tundra"to your body element - otherwhise the dojo widgets just look awfull!
• use a custom dojo build - otherwhise loading times of your page will be incredible slow
• don't forget to customize the css - including the main file of a dojo theme (like tundra.css) works, but is slow because quite a few css files are imported by it. So merge all css you need into your applications single .css file
• create your widgets programmatically instead of letting dojo parse html attributes - thats a lot faster.

By the way:I think I dislike html/javascript/css frontend progamming the more I do it - I guess it is time for somebody I can delegate this stuff to ;-)