Say you are in a Gemfile in one of your ruby apps and you need to update a dependency.. or maybe even more regularly are in a Gemfile and are ready to drop in a gem and you want to lock it to a version so your software stays stable with other gems/versions throughout development. Well, you could go to https://rubygems.org/ and search for the gem, copy the version number, switch back to your editor and then paste it in.
I created an Alfred workflow that basically allows you to enter a gem name and it does the search, finds the latest version number and copies it to your clipboard for you.
So you can just be in your editor and do a
[Ctrl + spacebar] on your keyboard, type
gemv: [gemname] and you will get a big display with the number and it will be in your clipboard to paste in the editor you are already in. I have found it super convenient.
Here is a link to the workflow on github. Hope you find it useful :)
NOTE: You will need Alfred2 with the Power Pack to use this. The Power pack costs money, but honestly I have paid for it in time I have saved myself in the amount of times i have use just this workflow alone... there are lots of other workflows I use on a regular basis that are rad.