Now push shift on those numbers and tack them on the end
now do that, but shift your typing to the right one letter
You should know that these tricks are old, and any decent password cracker worth it's salt tries these combinations too. Adding the four extra characters to the end is about the only thing.
Use something like keepass, with a decently strong master password (the scheme you describe above is adequately strong, unless you take into account someone who knows you IRL and wants to decrypt your password library) and then use really long, high-entropy, complex passwords for everything.
Never re-use passwords between multiple sites unless they're absolutely meaningless (I have a simple password that's composed of two dictionary words and two digits that I use for drive-by registrations on sites I'll likely never visit again).