I managed to use skyrim alchemy and enchanting potions to push smithing just by legally doing potions and enchants and managed to break light armor cap. So Lydia is walking in Bikini Fur Armor now

The Bikini Fur armor is enchanted with fortify light armor 57 points and health regen up by 86%
Since shield does not count directly to Light/heavy armor capI menaged to enchant it with 100% magic resist (got to enchant my gear in alchemy up to 77% and menaged to get fortify enchant potion to 87% and enchant on Krosis helps a lot for it as weel (+20% alchemy potion making strength)
Took me around of 4 hours in total and around 60 ingredients, but was totally worth it

I dunno about you guys but I find 2handed Swords majorly overpowered, especially very well balanced custom weapons like Saber's Excalibur. But Since none of the Saber's weapons are upgrade-able it's ok, but I managed to get Honed Ancient Nord Greatsword to deal +47 more damage than Saber's Excalibur. While Warhammer deals a lot more damage but is slower, such great damage on Daedric Greatsword (Sabers Excalibur is only +2 base damage from Daedric Greatsword) is seriously overpowered.
I also thought of this some time ago, but I never mined so I didn't really care, you can buy shit tons of materials from most smiths shops, but if you are passing by a mining vein and would like to mine it very quickly you should get 2 pickaxes, learn at least lvl 1 of the speed enchant shout, and attack the vein with pickaxes, 3 seconds mining beats 15 seconds mining.