The RAM of the 700w is probably its biggest drawback. There are a few easy things you can do to keep your RAM at a relatively decent level. Doing these four easy steps can drastically increase the available RAM you have thereby decreasing the problems you run into.
1) Turn off Voice Command. Unless you use it non-stop and can't go without it, leave Voice Command turned off. You can easily turn it on when you need it by pressing the hardware button you associated with it (I used the side button below the volume buttons). It will save you at least 1.36 MB if it is off.
2) Disconnect from data. Even a dormant data connection uses RAM. I got about 1 MB of RAM back when I disconnected a dormant data connection.
3) Soft reset. I soft reset my 700w at least once a day. I know this shouldn't be a solution that you should have to do, and hopefully updates from Palm and Verizon can limit the RAM used even on a fresh device at first boot. Until then resetting once a day can help.
4) Close any running programs that you don't need running. I leave Activesync and Messaging running at all times to grab my email from an Exchange server. If you press and hold the OK button, the Memory setting will come up and you can close all running programs. Another option is to download the CloseAll app attached to this post. You can place it on the device by opening the Explore window of Activesync and going to My Device/Windows/Start Menu/Programs. Then go to Start/Settings/Personal/Buttons and set the Option + OK program assignment to CloseAll. Now when you press and hold the OK button all running programs will be terminated.