This site generates a .gitignore file with common files, folders, and patterns based on the type of project you are working on. For example, you can enter Bower and CodeKit, and it will generate your .gitignore file that has the patterns you would likely want to ignore.
An alternative to jQuery. I haven’t used this yet only because I forgot about it. I will definitely try this out. I hope the performance is close to what it claims. It does not have all the functions that jQuery does, but at first glance, it looks like it has a lot of what I use most.