What are some Japanese contractions?

What are some Japanese contractions? I'm talking about the less mainstream ones, not like desu = de gozaimasu, or da = dearu

I mean stuff like this
なくちゃ＝なきゃ
です＝っす
～ています／etc＝～てます／etc
～ておきます／etc＝～ときます／etc
～てしまいます／etc＝～ちゃいます／etc
～でしまいます／etc＝～じゃいます／etc

There's a lot...  Also,「～なくちゃ」is already a contraction of 「～なくては」, 「～なきゃ」means 「～なければ」.
Here's some other stuff off the top of my head...
～ければ＝けりゃ
～てあげる＝たげる
～っただろう＝ったろう
～するの＝すんの
(人）の（もの）＝（人）ん（もの）
これは＝こりゃ
～だもの＝だもん
～している＝してん
～するな＝すんな
～しなさい＝しな
Depends a lot on dialect too... kinda hard to list, that's like trying to list every contraction in English (including shit like "gonna").

>>2
As a lasy, yet fluent Japanese speaker, I add that this is a very good list, but I will contribute nothing to it.

>>3
You may be fluent in Japanese, but your English needs work.

>>4
As I said, I am very lazy, and didn't even want to backspace to correct my misspelling.

Thanks! This is very useful.

Also, MOAR please! :3