Best Sites To Check Credit

I'm looking for one good site (even if it costs a few $'s) that will give me a good look at my credit. I will be looking to buy a house in the next few years so I want to see where I stand. Reason I'm asking is because a year ago, I put a hotel on a credit card for $120 for a trip to surprise my wife, forgot to transfer money, and did not realize for 6 months when it was too late for Chase to help me (already reported.) Anyone konw how bad my credit took a hit and when it starts to go back up? Such a stupid mistake ruined everything I've done to this point