New XP storing method

Hi Mojang, my name is Alex and i got an idea about new feature/item to store my xp level in java minecraft. So basically you offered xp bottles via trading with villagers but what if  is another way . My idea is about crafting XP bottles its self , here is how it could work. Throught playing u earn xp by killing mobs or smelting and with new item called "XP template" which u can combine with empty bottles (regular) and create "empty xp bottle " . When u want to store ur xp u can double right click and store part of your XP from xp bar. Those XP bottles now can be upgraded ( like tier one-5) . More of tier lvl of these  "new" xp bottles can store ur xp and stack it on its self . Tier 1 - takes maximum of 5 levels , Tier 2 - Max 10 and so on to max level of 50. I personally think its great idea but know u may saw it like trash idea . Anyway , thanks for your time .  

Alex / SandCZLP