I love the hop and visiting the blogs, esp. when you have visited mine! This amazing designer has tutorials on how to accomplish the most amazing blog things. go to Cute n Cool Blog Stuff -- Ikupilli for the code and instructions. She also sells ready made graphics and such in etsy. I got a sheet I used to make this (left) with Photoshop.
Then start a cheat sheet. This is a ms word (or other software) document code you might use again and again. If you find that the blog won't save highlight whatever you copy in and hit whatever un-format button your blog editor uses. HTML has a nasty habit of code dragging the formatting code you don't see with it when you copy. I know there is something out about cheat sheets thatis betters, but this is what I use.
I have one other hint. Renting your Domain name is cheap and you can easily feed through it. If you wait and start getting search hits the price will go up when someone else buys it. I rented mine for two years from GoDaddy and it was nothing. A friend started generating Google hits and now hers is $1,400!
So, sorry if you aren't a blogger and this is like, "I want Twilight why is she spewing HTML code at me!"