What are the best portable/lightweight apps for a laptop low on resources?
Truly it depends opon the age of your computer. Puppy Linux is a wonderful system and if your computer has less than 512 megabytes of RAM you should probably try it out. You may want to look into Midori for a light web browser for both Linux and Windows. You may also want to look into other light Linux distributions if you are willing to forgo Windows. Crunchbang, Lubuntu, Linux Mint Lxde, and the Lxde editions of Fedora, Salix and PCLinuxOS are all lightweight but fully featured.
Seriously, has anything from Mozilla qualified as lightweight in *years*?
My suggestions (for Windows, altho some of these are available on other platforms too):
Browser: Opera - http://www.opera.com/browser/
E-Mail: Opera - http://www.opera.com/browser/
IM: MirandaIM - http://www.miranda-im.org/
Office: Softmaker Office (costs 70 euros, but *much* *MUCH* lighter and IMHO much better too than Libre/OOo) - http://www.softmaker.com/english/ofw_en.htm
Word processor (stand-alone): PolyEdit Lite - http://polyedit.com/free.html
PDF reader: Sumatra PDF - http://blog.kowalczyk.info/software/sumatrapdf/
Archive/Compression: 7zip - http://www.7-zip.org/
Password Manager: KeePassX (1.x series to avoid .Net depedency)
If you're willing to try a whole new and light operating system, already bundled with light apps, I second the nomination of Puppy Linux.
I second the portableapps system. I also use PSU to keep them up-to-date.
I have my suite installed on this Class 10 16GB TF card installed into this USB adapter, and can testify that they work very well together.
If it is older (3yr+) you should try Puppy http://www.puppylinux.com/ Puppy is a fast very lightweight operating system. The only problem I have had with it is being unable to find wireless drivers for some newer laptops.
There are many lightweight portable apps on site-
Click here to visit portable apps site
This site publishes apps for use on flash drives in mind.So it will run a little bit slow on HDD.
Some good ones are - ( press ctrl key and then left click on the blue coloured link to see the software details and download page)
Mozilla Firefox, Portable Edition - the award-winning web browser that's safe and secure
Pidgin Portable - chat with AOL, MSN and Yahoo users in an easy-to-use interface
Notepad2 Portable - Simple, lightweight text editor
Mozilla Thunderbird, Portable Edition - the handy email client
µTorrent Portable (Freeware) - lightweight bittorrent client
Audacity Portable - A simple audio editor and recorder
Songbird Portable - Full-featured digital media library and player
VLC Media Player Portable - Aeasy to use media player that plays many formats
LibreOffice Portable - word processor, spreadsheet, presentations with excellent compatibility
Foxit Reader Portable (Freeware) - small and fast PDF reader
KeePass Password Safe Portable - Secure, easy-to-use password manager
CamStudio Portable - screen recorder and video producer
PeaZip Portable - Easy to use file archiver and compressor
Oh the link disapperared.You can see these apps by visiting the link
There is double posting of my comments because diqus has asked me to enter captcha for twice.
I fixed your original comment. You copied and pasted italic code snippets again (specifically the " was italic) and somehow Disqus got confused. Be sure to use plain text code if you are trying to write HTML. Also don't forget to add a (plain text) " in the beginning and end of a URL or title, otherwise you ruin the entire tag.