here is a tip for new players or players who are not aware of this trick yet:
If you want to get a good item to +15: First, max blacksmith so you can have that instant +7, then since the game saves automatically after each time you gain a new age (including rebirth), you can try to upgrade the item just after a new age, if fail, reload the page, then use the Remote Load to get back the save file (the age timer will read 20:0 after the load). The normal 1 click load saves after you left, so it can not be used (cuz it will be after you lose your item due to failing anyway). Thus, for example, if you up 1 item 1 time per age (+7 -> +8), you will need only 2 hours to get +15 each item (assuming rebirth at age 20 and pick age 17).
 "Battle without End"){kind=icon}
 "Swords & Potions 2"){kind=icon}