Prague - Doing some Travel

Hello all,

So its been a good long time since I been on here, things went well in life, then not so well, but such is life.
So I have decided a little holiday is in order, and not necessarily looking for sex tourism or anything, though not refused.

General advice is good. I'm travelling to Prague and looking for whats good, whats not, tips and tricks.
Things to see, places to go. Yes...yes, I can google tourism, but I have decided to ask.
Nothing wrong with a few reccommendations, that take 30 seconds or 1 min to write down.
PM's accepted.