First of all I would like to give credit at Opera for the feature called Stash which they recently brought in the browser.My request is kinda inspired from it.
Motivation
I just started using the mobile application and its nice for reading stuff, maybe a comment or two but still I prefer to have the comfort of a PC to write a proper answer.
There are even times(this is less often) when we read a question and due to any reason we are unable to answer it at that point of time but will still like to answer it later.
At often times it may happen that I forget the about question or may find it difficult to find it , if its about a high frequency topic(Like HTML5 ,Javascript ) ,and now when stackexchange has so many websites and a unified app this things start to stand out a bit more.
Solution
So I would like to propose that we can have a similar feature like Stash in the website where a user can quickly add a question to the Revisit Question Queue (or something similar),and the user gets notification about the question in the queue periodically, or he can manually revisit it later.
I know that the current workaround is that the user can favorite a question and then revisit it , but still I feel that favoriting a question/answer is conceptually different from what we are trying to achieve, and also finding a question that I Favorited previously for answering is kind of difficult if you have a long list of Favorites