Unfortunately, I invented myself a new hobby - to experience them, and share it at http://howto.wikia.com

My first idea here written is Hankeyboard (Jan 18 2003)

[Oct 05 2002, last modified Nov 11 2007]

A login with protection from keyloggers (+11, -3)
A Speed Reading Learning Technique (+4)
Backpack-like Coca-cola bottle with a straw (-2)
Bar-code based schedule information exchange (+5)
Below-windowsill winter refrigerator (+5)
Hankeyboard (+3)
Hitchhiking Stops (+3, -1)
Hot or Not Dictionary (+1)
howtoengineerit.com (+36, -3)
Human Language Creation Method (+1, -2)
Ice Sledges (+3)
IM Asynchronism indication (+1)
Indoor smoking mask (+4, -5)
Intelligent SMS Reminder (+3)
Keyboard-present dentist's chair (+8)
Light Year Cube (+7, -3)
Login screen with subject field (+8, -2)
NHFSD (+1, -1)
NOPES - Notes for interPersonal communications (+1, -3)
One City (+4, -3)
Profemaile (+3)
Turn-back-time Media (+1)
Unambiguous Colorful Text (+2, -6)
Vocabulary Highlighter (+1)
Volunteer tag for HB comments on Ideas (+3, -3)
web-based people's self-organization tool (+4, -7)

halfbakery