Currently, when browing the marketplace, since the items are sorted by ascending FVC, it is sometimes difficult to find an item at your level. For example Topaz Silver Earing of Ravaging (level 35) is among the level 80 items because of its high FVC cost. It would be a little easier for family members to find an item they want if things could be sorted by level.
Also, when looking for an accessory in Jeweling, all of the rings, amulets, and earrings are in the same catagory (Accessory). You can only have a maxium of 2 rings, 2 earings, and one amulet, being able to sort by type would also be helpful.