Here is a list of some Ideas I had for magic charactors.
1. Being able to erase obsolete spells from your spell menu. I don't need the 5 fire damage spell hanging around for the rest of eternety. Maybe you could place spells you didn't want into books and sell them.
2. You should be able to enchant gloves with destruction magic.

thats all i have for now.

I agree with you on the first point, I didn't like the cluttered spell list, but if you could enchant armor with offensive magic it would need the same magic charge that would get depleted as weapons so you wouldn't have infinite fire magic at your disposal. And to keep things balanced you wouldn't be able to use a gauntlet enchantment at the same time as a weapon.

Forest Thump your 1st idea would be a MASSIVE help. In Oblivion it became a bit annoying and messy to keep track and organise all your spells. Morrowind allowed you to delete spells, I don't know why Oblivion left that option out.
About your 2nd idea I'm not so sure if it can be done, armour and clothes may just have constant effect enchantments like in Oblivion

Yes, we should be able to delete spells. They had those type of enchantments in Morrowind.

The 1st idea is pretty much Okay, although you had the ability to erase spells in Oblivion using the console (removespell ).
About the 2nd idea, I'd say Bethesda should leave Destruction magic for the weapons...