3. No Shop Vender Caps
I don't know about you but I have a literal treasure trove of armoury, weapons, jewels, diamonds, ceremonial swords, enchanted staffs, shields and other trinkets stashed away in chests in each of the five houses I own throughout Skyrim and I can't do a darned thing with them because I am already "over encumbered" and the loot I collect on my travels is often worth much more than any merchant I've found can afford. Before you say it, I know that if you have a high speech skill and invest in certain perks that vendors will have more money for you to barter with them but for those of us who have neither the time nor inclination to go down that route when it comes to levelling up our chosen characters because we'd rather invest in the perk that lets us decapitate our enemies instead, it's a real pain. There should be a way to allow all characters make the most of their stashed loot - either be removing the carry weight system or by making vendors carry around more dough, especially in more affluent areas such as Solitude.