Leveling Up With Timewalking
stargrace 
Somehow I found myself activating all 5 Warcraft accounts, and running my own characters through Timewalking dungeons in order to level them up. It went very smooth, and I had a lot of fun. I have a fury warrior who is locked at level 11, wearing a bunch of Timewalking gear + TBC gear + SL gems, and then any 4 other characters. In this case I went with my 70 warrior, 70 hunter, and some low level 10 warlocks. I put 4 of my characters in a group together, and left the experience locked character out. Then I queued for a specific dungeon early in the morning, when I figured no one else would be queuing for it. Chance would have it that 5 minutes later everyone got invited to the same dungeon, and I didn’t have to worry about that experience debuff. If you try to group with someone who has experience disabled, and then queue, you won’t be able to gain experience. There’s a few other ways of working around this issue, but I went with the easiest (for me) method.
After that, it was smooth sailing. I was able to queue for the Timewalking dungeons which give a HUGE amount of experience to all characters. It took approximately 1.5-2 dungeons per level for the characters who were 70+ and the lower level ones gained levels much faster. By the end of the day, I had two more level 80 characters to add to my roster, along with two more 50+ characters. The level 11 will just sit there on the unused account. MUCH faster than doing pet battles, and I also now have the 25% bonus experience on all of my bnet accounts due to having max level characters (it caps at 25%, 5% per level 80). It’s not the most interesting method of leveling up, but once I’ve played through the story one time I just really don’t want to keep doing it over and over.
Next up? We’ll just have to see. Probably more level 80 characters. I only have while the 20th anniversary event is up (I believe it ends January 7th or there abouts) and then the regular timewalking weeks after that. I don’t imagine I’ll keep those extra accounts subscribed for too long – but I do intend to take advantage of it while I can.
As always, happy gaming – no matter where you find yourself.