A nice list, but I can't be the only person here that is trying to speed up my page-load time and reduce the number of development tools that I depend on. Which would make a smaller shortlist?
I guess it depends on what you need. Most of them are helpers to create quick applications, ideal for startup and prototypes. Writing less code also mean writing less bugs. When I create a stylesheet, it may take a while to get feedback if it doesn't work on a obscure browser version while a bug in Twitter's bootstrap will be detected (and probably fixed) a lot sooner.
speed up my page-load time and reduce the number of development tools that I depend on
Most people like to speed up their page-load time, but reducing the number of tools you rely on seems a strange thing to do (unless it is some kind of enforce-artificial-constraints thing).
A good craftsperson knows their tools well, and knows which tool to use where. Reducing the number of tools seems artificially limiting.
Knowing tools takes time. And it seems like every week I'm hearing about some great new dev tool. Do folks actually try all of these? It seems you'd be perpetually at the base of the learning curve if you did.
And it seems like every week I'm hearing about some great new dev tool.
True
Do folks actually try all of these?
No
Hearing about something is a data point. Hearing about the same thing, multiple times, from multiple sources you trust is a sign you should try something.