[philrob]

If you are in a position to leave your mac running while you are at work, then you could configure the omnifocus mail link. Just send the tasks you need to your mac, prefixed with your special characters (set in the preferences) and omnifocus will put them into your inbox. (or if you include context and project the 'correct' place)

My wife uses this approach to send me the shopping list to collect on the way home.

A 'proper' web solution would be a godsend though.