I sometimes left new gear in my bag until I had run all the raids I was going to that week as I got tired of optimising my character only to have another item drop that meant I had to do it again.... So I just left them in my bag and then when I was done for the week I would equip them all and then get them gemmed/enchanted/reforged. That DOES seem a waste of gear for that week - but I wasn't going to pay upwards of 500g a week just to gem/enchant/reforge my gear.