Here are some tips for some of you:
1- Go through your vault champions, especially the noob ones that were wearing crap noob gear (remember those "equip attack champion with 3 attack sets" quests?) Maybe you got some silver sitting in your vault this way. Remove and sell them all
2- If you are struggling to complete certain levels of Faction Wars, this is a great time to "cheat" them :P. Find the 5 best sets you got, equip those on your team, you might complete the harder levels no problem (I did this to finish Knights Rev with a level 40 Bergoth, so its possible). The best sets to switch around are probably regeneration, shield and stun sets. Since you may not have 14 great sets of each to have one for each facrion. take your best and swap them around.
3- Along the same lines, if you ever took a pause from the game, you might still have an "open all faction crypts" recall boost. Might be a good time to use it, and repeat process #2 accross all the factions that would otherwise be closed to you during the regear period. You will inch ever closer to Lydia, not a bad thing if you are pushing to get her before the Sylvan Crypt opens.
4- to do tests, to make it easy for you to remember your builds, take off all the gear you have on that champ and slot them on a dupe or whatever champ you never use. Then test out new gear. In case you want to switch back to previous setup, you'll easily find all the pieces on one champion instead of going through all your inventory.
and 5- Most importantly, have fun with all of this!