You are sitting on the button, all fold round to you and there's only you and the blinds left in. The blinds are there because they have to, so do you take adventage of this?. It doesn't happen very often so I do. Unless one of them has caught a hand you can pick up the blinds..How much do you raise to get them to fold?. Do you have a minimum hand?
The hands I open on the button depend on effective stacks. For example, if BB is short and effective stack is only 9 BBs, I'm going to open with a bit a tighter range because I don't want to be raise/folding to a shove with weak hands. Of course, if BB is the nittiest of mcnits, then I'm opening with a much wider range.
I try not to open too wide unless blinds are super tight and folding a ton of hands. So, while my opening range is fairly wide, I do like to open with hands that have some good post flop potential. So, I probably wouldn't open 29o too often, but i'll open with 3Js.
As far as raise sizes go, I'm sticking between 2-2.6x BB because I don't want there to be a huge discrepancy when I'm stealing blinds and I'm opening for value. Obviously, if I'm stealing blinds with a bad hand, I'm min-raising more often as it minimizes my losses if I have to fold pre/post flop, but I'm also doing the same with small pairs, suited connectors, etc. And I'm slightly increasing my bet sizes for hands I'm looking to get value with from the blinds; big pairs, suited broadways, etc. I try to keep it consistent with opening sizes, but not consistent with hands I'm opening with. So, I might open AA for 2.2x and then open KJo for 2.5x.
By keeping my opening sizes consistent, I give my opponents an opportunity to play back at me when I have a huge hand. Something I see some players do is open small with weaker hands and then pop it up 4-5x with their big hands and get no value or called/raised by better.