i'm using a nice firefox utility called "reloadevery" set to every minute (or 30 seconds @ T-15, every 5 seconds for T-5 and so on). Once it comes up i'll switch to my phone and complete the process via the app.
The reason I do this is because there's no way to refresh the store app manually and it looks like it happens every couple of minutes unless you close the app and open it again. Obviously I don't want to miss the opening cycle.