I've been using all three of these for quite some time now... here's my 2 cents.

Calea should be used by itself, not with marijuana. If you're using calea for a dream aid, weed slows down your REM (rapid eye movement), there's a post about Lucid Dreaming in the lounge that kind of talks about it more. I stick with the leaves and roll joints out of that, i've never used the extract. My suggestion would use a little bit each night about 20 minutes before bed. Take your hits (not too much) and just relax and fall asleep, don't do anything physical after smoking. Calea usually takes time, so if you don't feel anything for 2 weeks don't give up on it, its something that takes work. Also, calea is a great catalyst for other plants such as Kava and Blue lotus...

As far as the Blue Lotus goes, don't waste your time smoking it. The "traditional" way is to steep it in wine/alcohol then drink it, but i'm not sure how that would work with the extract. Once again i've only used the leaves but what I normally do is mix the leaves in with applesauce and eat it. You don't need that much, maybe a tablespoon full of leaves, and the effects are very pleasing. You can also use a TINY bit of blue lotus before using salvia to enhance the effects. I suggest you don't take a full dose of lotus before salvia, but just threshold amount.

Salvia is one of the greatest substances ever, but it is often underrated/overrated at the same time. It is not used to "get high" or get "fucked up", you have to respect the plant because it will take you for a ride. Using a waterpipe or a nice bong is the best because the smoke can be pretty harsh. Typically a torch lighter is recommended but you can use a regular lighter if need be, just keep the flame on the bowl the ENTIRE hit. Take as big of a hit as humanly possible and hold it in for 30+ seconds. It's best to have a friend nearby incase you drop the piece or lighter, etc.

Once again i suggest going to erowid.org and doing a little bit of research so you can experience the best effects! Good luck man, you've definetely got some good plant allies there!