In this week! I'll cover some addons that i feel is almost a must. And most of these addons, are light weight, unnoticeable, but makes your life a ton easier. And surprisingly, not very many uses them.
Light weight and unnoticable addons:
Autopvp
This addon has been discontinued, so you can't download it anymore, but it's still very fully functional, and you can download it -right- here, on this very post.
What the addon does, is enabling pvp, when it's off. Basicly, when you go into a sanctuary, like say Dalaran or Shattrath, pvp is by default, taken off. So this addon will put pvp back on. It's also very handy, since no one will ever tell you to put pvp on again.
Postal: http://www.curse.com/addons/wow/postal
Postal enables you to open all your mail, quickly and easily. It enables you to quickly send mail, to players you've previousely sent too. All around, this is a light weight addon, you won't notice, but the functionality of it, improves the game.
SaySapped: http://www.curse.com/addons/wow/saysapped
We play on a PvP server, so it's very useful to know when someone gets sapped. This addon will simply make you /say * Sapped * That's it, nothing else too it. But this addon has allowed me to save some of your butts before.
Scrap: http://www.curse.com/addons/wow/scrap
This addon sells all your junk item, when you talk to a vendor. It won't sell any white items, so all your roleplay items are safe. Should you have grey items, like a pipe you like to link into your emotes, that can be "Blacklisted" So it won't sell said item. But all around, this addon just keeps your inventory clean.
Addons i personally like alot, that you might like as well:
http://www.curse.com/addons/wow/altoholic Allows you to see all your characters inventory, and it will also show you if one of your characters has said item, on tooltips, aka, the box that pops up when you mouse over something.
http://www.curse.com/addons/wow/bagnon This merges all your bags into one.
http://www.curse.com/addons/wow/battlegroundtargets If we ever do rbgs again, this addon is a must have.
http://www.curse.com/addons/wow/Elephant Gives you a chat log, going back something like 5000 lines. and you can copy them too.
http://www.curse.com/addons/wow/gladiatorlossa This is probably my favourite addon. High priority cooldowns are announced, when enemy players use them. For example touch of karma, Bladestorm, Spirit link, ect.
http://www.curse.com/addons/wow/gladius-v3 -VERY- useful arena addon. Shows their trinkets, major cooldowns, health and mana into small moveable unit frames.
http://www.curse.com/addons/wow/quartz This replaces the standard casting bars, with coloured and easy to see ones. They are sizeable, moveable, recolourable, everything. Plain and simply awesome.
http://www.curse.com/addons/wow/Tellmewhen This addon is abit more advanced, but so useful, and if you need help, i'll help with it in-game. You can make it show icons on your screen, for -your- buffs, but also the buffs and debuffs on your target. This is extremely useful for both pvp and pve, especially for any class that needs to keep dots up.
http://www.curse.com/addons/wow/wim-3 If you, like me, get alot of whispers, this is such a must have. It opens up windows instead, unclugging your chat.
http://solidice.com/addons/wow/oqueue: This is another really great AddOn. A group finder, which allows you to find premades for various things.
Light weight and unnoticable addons:
Autopvp
This addon has been discontinued, so you can't download it anymore, but it's still very fully functional, and you can download it -right- here, on this very post.
What the addon does, is enabling pvp, when it's off. Basicly, when you go into a sanctuary, like say Dalaran or Shattrath, pvp is by default, taken off. So this addon will put pvp back on. It's also very handy, since no one will ever tell you to put pvp on again.

Postal: http://www.curse.com/addons/wow/postal
Postal enables you to open all your mail, quickly and easily. It enables you to quickly send mail, to players you've previousely sent too. All around, this is a light weight addon, you won't notice, but the functionality of it, improves the game.

SaySapped: http://www.curse.com/addons/wow/saysapped
We play on a PvP server, so it's very useful to know when someone gets sapped. This addon will simply make you /say * Sapped * That's it, nothing else too it. But this addon has allowed me to save some of your butts before.

Scrap: http://www.curse.com/addons/wow/scrap
This addon sells all your junk item, when you talk to a vendor. It won't sell any white items, so all your roleplay items are safe. Should you have grey items, like a pipe you like to link into your emotes, that can be "Blacklisted" So it won't sell said item. But all around, this addon just keeps your inventory clean.
Addons i personally like alot, that you might like as well:
http://www.curse.com/addons/wow/altoholic Allows you to see all your characters inventory, and it will also show you if one of your characters has said item, on tooltips, aka, the box that pops up when you mouse over something.
http://www.curse.com/addons/wow/bagnon This merges all your bags into one.
http://www.curse.com/addons/wow/battlegroundtargets If we ever do rbgs again, this addon is a must have.
http://www.curse.com/addons/wow/Elephant Gives you a chat log, going back something like 5000 lines. and you can copy them too.
http://www.curse.com/addons/wow/gladiatorlossa This is probably my favourite addon. High priority cooldowns are announced, when enemy players use them. For example touch of karma, Bladestorm, Spirit link, ect.
http://www.curse.com/addons/wow/gladius-v3 -VERY- useful arena addon. Shows their trinkets, major cooldowns, health and mana into small moveable unit frames.
http://www.curse.com/addons/wow/quartz This replaces the standard casting bars, with coloured and easy to see ones. They are sizeable, moveable, recolourable, everything. Plain and simply awesome.
http://www.curse.com/addons/wow/Tellmewhen This addon is abit more advanced, but so useful, and if you need help, i'll help with it in-game. You can make it show icons on your screen, for -your- buffs, but also the buffs and debuffs on your target. This is extremely useful for both pvp and pve, especially for any class that needs to keep dots up.
http://www.curse.com/addons/wow/wim-3 If you, like me, get alot of whispers, this is such a must have. It opens up windows instead, unclugging your chat.
http://solidice.com/addons/wow/oqueue: This is another really great AddOn. A group finder, which allows you to find premades for various things.