best mysql data types for space reduction and performance increase

I search through google a bit and found a few decent articles, but not really what I needed. I'm trying to find the best data-types to use for:

1. data-type f开发者_开发技巧or 10 int length
2. data-type for 1 int length 0-9
3. data-type for int of 1 or 0
4. data-type for string of 32 chars
5. data-type for string of 255 chars

I guess my overall question is what data-types should I use to reduce space since the cost per GB is ~$6. Though I also don't want to sacrifice CPU performance just to save a byte.

1. int or bigint, depending on just how big the 10-digit numbers are (unsigned if it makes sense)
2. tinyint
3. boolean (not nullable)
4. varchar(32)
5. varchar(255)