"When I was just starting out, I had x, y, z....
Now you might think about trying W but that never works like you expect."
These can get you started and then you can move onto the more advanced thing, but these work just fine.
Oh yeah company Q might look attractive but you can do better with U.
Share the tidbits you wish someone had shared with you early on, they don't need to waste time & money on crap.