Personal top 5 or 10 hacks.

[Jacko]

OK guys i know this probably has been done before but what are your top 5 or 10 hacks that you have seen or used (all hacks must be available to others)

All hacks must have the name, and why you chose it.
ok here goes mine:

1. Quick Reply - Because it saves so much bandwidth for me and time for the users

2. myvbindex - It has saved me so much messing with coding as i cant do any and it allows me plenty of features to play with.

3. Mass Pm - Allows me to pm all my members with the latest news and updates

4. Stars Hack - Gives members more ways of rewarding them such things as having higher ranks indicate that they are a long time/posting member. (or they just spam!)

5. Vbstats - Keeps me in tune with whats going on with my forums.

Thats my top 5, what are yours??