I thought some people here might be interested in knowing some 'cheap and easy' ways to raise a skill if you don't use it that much. I developed these through trial and error myself and from using the awsome Unoficial Elder Scrolls Website online.
A number of skills you should be able to max out on your own just through constant use, but I'll share some advise anyway.
One Handed: Do the Dark Brotherhood main quests. About half way through, you can get a horse called Shadowmere. He's VERY tough to kill and regains hit points -- making him perfect to use for target pratice! Just take your weapon and wack away at him. Unless you have a amazing weapon, he'll regain hit points faster then you can take them away, and you can level up your skill.
Two Handed: Same
Archery: Same
Destruction: Same
Alteration: Find a dead body -- ANY dead body -- and cast Soul Trap on it over and over. It's probaly a bug, but it works.

Illusion: Use a spell over and over again. I did it with Muffle, but you can pick something else if you want. You can just hit the button over and over while doing something else like watching TV.

Conjunction: Stand in a body of water deep enough that you could dive under -- that is, somewhere where you are totally underwater and you could use Waterbreathing for. Don't actually go under, just be standing in that water. Then cast Waterbreathing over and over.
Restoration: A healing spell combined with the one from another school that converts health points to mackiga works well here. I can't recall the exact spell name, sorry, but cast it with one hand and when your health gets low cast the healing spell with the other. Rinse and repeat. Just be carefull not to kill yourself!
Blocking: Grab a shield, stand in front of a foe with a weapon, and just hold the block button down all the time, healing as needed.
Light Armor: Find a enemy, let it hit you over and over, heal as needed. The stronger the enemy, the better.
Heavy Armor: Same
Sneaking: Go to High Hothragar, the home of the Graybeards. Find one of their number, and go into stealth mode. Wait for the Graybeard to either be sleeping or praying -- NOT moving. When you are hidden, swing a weapon at him. You'll get the stealh bonus for the attack. Wait for you to go hidden again (the eye is closed, takes a few second) and hit him again. Repeat as needed. Do NOT attack him when he is moving around! That will cause him to go hostile and he'll attack you. Just do the stealh attacks when he's sleeping or praying, and this works great.
Lockpicking: Buy a ton of lockpicks, find a Master or Expert lock, jaim the right thumbstick over to the left or right, and leave it to allow your skill to go up trying to pick the lock.
Crafting: Buy some ore and leather, and make cheap items like steal daggers, over and over again. This works great when combined with Enchanting (see below)
Enchanting: Buy some cheap filled soul gems (nothing better then Greater) and enchant cheap weapons and armor. As a side bonus, you can then sell the enchanted stuff for extra money.
Alchmey: Stock up on ingridents, and and look online for a page that says what all the receipes are. The BEST ones to do are the ones that call for Giants Toe and use three ingridents -- not only cause it raises your skill the fastest, but cause you can sell it for the most money. I don't have the listings now, but I'm sure you can find it online, or I can post later if someone asks. Do NOT waste your Deadra Hearts on this, though! Save those suckers for when you made Deadric weapons and armor.
Speachcraft: Buy and sell cheap items over and over with a merchant.
I think that's all the skills -- if I forgot one, let me know.