In order for us to use these things after playing a long time, I think we should be able to exchange Vanguard marks and commendations for Crucible marks and commendations and vice-versa. These are default vendors and each side has tons of extra marks that are useless. We should be able to access each default vendor regardless the type of marks. It should be a 1:1 ratio and gave it in increments of 50 marks. Let us use the access stuff for fun trying out every vendor gun for sale. In case your stats don't show, many lvl 30+ have hundreds of ascendant stuff which just takes up space along with commendations. Open the economy so we can spend all these currencies or better yet, consolidate marks and commendations into just plan old Guardian Marks and Guardian Commendations. You then can earn 200 marks a week if you max out in PvE and PvP. Let's give some incentive to grind for things to do until the next DLC.