Well, I'm sure I stumbled accross a common method, but it worked a treat.

This really worked well with three to six players left - any more and I think my moves would not be noticed by all the players.

(BB is 100 for these examples)

I was mixing up my raises with strong hole cards, sometimes I'd raise 600, Sometimes 300, sometimes 200 (the largest in early positions). Then, when I got called, went to a showdown, and won, I'd make a mental note of what I initially raised with - whatever the amount. This was now my "strong hand raise amount" as far as the other players are concerned.

Next time I got an average hand I'd bet the "strong amount". All would fold. Or at worst leave a caller who I'd get rid of with a hefty continuation bet. Pretty standard stuff.

Then, when I raised x amount with an average/crap hand and got caught (and I'd show) - I'd use this as my "weak hand raise amount" as far as they are concerned.

So basically, I'd make sure they saw me raise , say 400 with a monster hand, and 600 with a crap hand.

From now on I'd flip it and raise the opposite. 600 with a monster and 400 with crap.

It worked every time. I got callers with monsters and folders with crap! Bets of all I rarely went to a river so they never saw.

I may have got lucky in one game, but it sure worked a treat and had them foxed. After a while people just didn't want to be in a hand with me.

(It was slightly more complex, can't remember the exact details but I remember having three set amounts I used and flipped them to the opposite of what I'd revealed in the past)