Totally agree with you. I do think it is more natural to ask a collection if it has an element.
On the other hand, it would be possible for Object to have an in? method that would receive a collection.
I thought session restore for tmux was awesome, and then I got to know that tmux has a plugin manager and fuzzy history search! brunosutic, you made my day.
I've never used a real alarm clock, but I do feel like it is easier to wake up with sleep cycle. It is also awesome that you have a limited number of snoozes, after those it doesn't stop ringing.