[Galaxy Note GT-N7000 General] ardicli2000:
First of all, please allow me to express that this method is not taken from somewhere else or not required any expertise to implement. This is just based on to remove heavy TW applications, and find better replacements for them. Mainly, this is not a mod at all :)

I am sharing this method because it is tried by lots of people and they conveyed their appreciation for overall performance and battery life increase.

As a start, either Flash a fully Stock odexed Rom or flash a TW based Custom Rom.

Then root it, and flash a performance kernel. Preferably H.O.C Hello World Kernel v1.3.7b.

Make a Full Nandroid Backup including /preload partition. I bear no responsibility for any lost info or broken device. (Actually it is impossible to break the phone by implementing this method but who knows :)

Then install Titanium Backup. Backup all user and system apps.

These are all kind of prerequisites. There we start now :D

First thing to be done is to get rid of TW Launcher. IT is hell of a burden for whole system. Best replacement for me is Nova Launcher. You choose your own. After you settle with new launcher and rest assured that it is OK, freeze TW via TB. Thanks to this step we have gained more than 50 mb of RAM :)

Second thing is to get rid of is Gallery. Due to Facebook, Picasa, G+, etc. integration Gallery is always working background and pushes system very hard. Best and fastest replacement is stock Android/Google Camera and Gallery. Here is the link: http://db.tt/L1ip1Inp Flash it via Recovery. This will install system folder. You can find preload variations on the net.

After you install the zip, set video recording resolution to 480p. Otherwise it gets stuck. When you confirm that media scanner is completed and Camera is working including whole features, then you can freeze and/or delete stock gallery and camera apps.

The other wise thing to do to lighten the rom would be deleting some bloatware, actually all bloatwares :D. Start with ad apps, and continue with live wallpapers and live wallpaper chooser. After that, you can delete Samsung scloud agents. If you are not using them, it will be wise.

Other apps to be deleted could be FM Radio, Google Play Music, etc. The ones you are sure that you are not using. Actually to give a complete and proper list is unfortunately impossible. Cause it is dependent to tastes and choices. For example, I don’t use All Share and Group Play, so I even deleted them. On the other hand, you may be using them. So even if I tell you what I have deleted, it may not work for you.

You can also delete some widget apps like Favorite Apps, contacts, etc. They consume RAM. Get rid of them. If you are not using stock keyboard, then get rid of Samsung IME, swype. Also you can delete street view, double clock, digital clock, etc. You decide it. There are lists floating around in which you can find the app safe to remove.

Any app not essential for system can be deleted. If you are hesitant whether an app is obligatory for system working or not, then just freeze it :) So that you can defreeze it later on if you face any problems.

I would strongly advise you to get rid of Play Store, Hangout, Play Music, Play Services. If you need GTalk, here it is: http://db.tt/6NKHZMvV (Replace it with Hangout apk (don’t know the name) and set the permissions. If you cannot find a replacement for Play Market, try 1Mobile. It is free. No warez either. Afterwards you won’t need Play Services. System will be free of another heavy duty as well :) :)

Now, we set our Rom according to your taste and needs. System is a lot lighter now. It is time to implement some mods.

Search for Direct Injection tweak on xda. Flash it via CWM right away. Let the phone boot.

Then, install Seeder from xda also. Choose all 3 options, set it to moderate and Turn it ON. Reboot the phone again.

After, install No Frills CPU from 1Mobile (we deleted Play Store :D). Set governor as HYPER, and scheduler as row. Max Freq: 1,2GHZ; Min:200 MHZ. Tick applying settings on boot. Then activate your Battery Saving Mode.

Finally, go to recovery. Wipe Cache and Dalvik Cache. Let the phone reboot and settle for 30 minutes.

Enjoy the fastest Rom ever :D:D

Please do not report battery life before 3 full cycle.

Regards.