I'm using the default archive index template, but with a lot of categories (20+) and a lot of monthly archives (> 3 years), the page is unnecessarily long, but quite narrow. Here is a suggested simple improvement to the default Archive Index stylesheet which will render the monthly archive index alongside the category index, resulting in a shorter archive index page, with the archive indexes alongside of each other:

Just put this style text in the <head> portion of the Archive Index template:

CODE
<style>
.archive {
width: auto;
position: relative;
clear: none;
float: left;
margin-right: 2em;
margin-left: 2em;
}
</style>