Ben Allfree :: Painless Programming

Just like the pre-checks, I also have post-checks to ensure quality. Here they are:
Layout

Margins/padding match comp
Liquid layout does not introduce gaps on resize
Capitalization matches comp
Text styling matches comp
Coloring matches comp
Text leading matches comp
Proportions and relative sizes match comp
Indentical or downlevel rendering in FF3, Safari, IE7, IE6
Navigation does not wrap in small liquid layout
Status bar features [...]

I've used most of the JS frameworks out there. They all share a similar strength. They make complex cross-browser scripting easy. With them, you can hook into events, set timers, perform animations and transitions, create popups, and in general make the browser window behave like a desktop app.