I'm going to somewhat take a cue (giggle ^-^) from a reddit post I found discussing some house rule ideas for Destiny, that has just what you want, and which I plan to use in my own games.
Firstly, tags and cues can each be 'activated' once per session, so long as the GM agrees that the tag/cue fits into the player's chosen actions and the scenario at hand. Doing so grants a bonus to the player's dice roll - this can be a bonus of +1 or +2, but should be adjusted to what you as a GM feel works for you and your players. Just keep in mind that an inherent part of 2d6 systems like Destiny and AToW is that a +1 bonus can be more impactful than you might first consider it to be.
I also recommend that you guys consider playing Destiny similar to a more traditional RPG, with the GM having more power. Plot points can be used to give players a bonus to their rolls, to reroll a possible death, take special actions, and so on at GM approval. It might also be possible to allow a player to invoke a tag/cue a second time during the same session if they spend a plot point, though I wouldn't recommend allowing it for a third or further time.
EDIT: Sorry, just saw that you already plan to play it more traditionally. Hopefully the plot point advice will still help you out, though.
