Takes VERY little for me, but then again I've smoked about twice in the last 8 or so months. A while ago though, my tolerance would slowly build up to where it took considerably more to get me where I wanted to be...and I usually don't get there after a while. When I get like this I just take a small break (at least 3 days lol). It helps a lot...

So, ignoring the rambling... a joint should get you ripped