If you have a teacher supply store in your area they would be able to do it for you. Some Staples/Office Depot/Office Max/Kinko's can also laminate.
I got stuff laminated at Staples and it cost me a fortune. I could have gone to Wal-Mart and bought a laminater and the sleaves and got about 50 more 8"x11" sheets laminated for just $10.00 more than what I paid at Staples.:x So be careful, you might just want to buy one at Wal-Mart.
If it's too expensive I'm just going to buy what I need. I just thought it would be more fun to make it.
If you aren't doing anything bigger than a sheet of paper.. go to Walmart and buy a laminator for $25, and some laminating sheets for a few more and do it yourself.. its definately an investment you won't regret!! I love mine use it constantly!! I buy several packs of 200 laminating pouches from Sam's Club a year (they are about $20 for 200 of them there), so that tells you I laminate EVERYTHING! If it's too big for a home laminator, there is always clear contact paper... a pain but way cheaper than Staples for sure!