Also I need some help with compling Hints & Tips.
Here are a few to start you off:
1. Use Alt-S to make sticky notes. These have tons of uses:
- Indicate future tile plans (e.g., desired city locations, which hills you want to mine or windmill, etc.).
- Indicate which national wonders you want to build in each city, etc.
- Keep track of slavery unhappiness this way, since there is no counter to remind you when each unhappiness point will expire. Each time you whip, add a sign near the city that says, for example, "+1 happy on turn 157."
- Add signs to remind you when a peace treaty will expire.
- If you're going to add a new city between existing developed ones, indicate in advance which tiles you want that new city to use. That makes it easier to re-assign all the tiles after the new city automatically steals tiles from all its neighbors.
2. If a tile is in the fat cross of two different cities, then you can change its ownership by clicking on that tile from the chosen city screen. (If I only had a nickel for every time I see this mentioned in a thread and then someone immediately responding with "Wow! I didn't know that!").
3. To optimize worker usage: If it will take your worker an even number of turns (or multiple of 3, for a Fast Worker) to get to a tile without a forest/jungle/hill where you want to build an improvement, then stop one tile short, spend 1 turn on whatever future improvement (or road) you think you might build there, and then cancel the action (using the keyboard, hit <\> to get the focus back on that worker, then <backspace> to cancel).
4. For safer exploration with scouts or chariots (at the cost of slower long-term speed), you can move one space onto a tile without forest/jungle/hill and then skip turn.
5. Be aware that in BtS, citizens often switch automatically to tiles with newly finished improvements, even when all automation is turned off. If you want to catch this, then set a reminder (Alt-M) like "check citizens outside Athens" to go off when the improvement is finished.
6. You can rename units or cities just by clicking on them. This can be a real time saver. For example, if you rename your cities according to purpose like "War Machine," "GP Farm," etc., you will be able to work more from the popups without having to go to city screens as much. Or rename your units according to planned function like "Garrison," "Recon," etc. That will help you recognize units faster without having to look at their promotions/xp to remember who they are.
Besides, the other UGs out there are really very good, and I don't see how much more we can add to them.
I felt kinda bad that maybe I discouraged you from building the more complete icon grid you had come up with. 
