[lunchbox]

Good idea. For those of us who use an @gmail.com address, here's what you can use in lieu of plus signs, which as JimmyL said often don't work:

Gmail lets you insert periods between the letters of your username. So if my email address is [e-mail], the following are valid variants of my email address:

[e-mail]

[e-mail]

[e-mail]

And so on. So you can use variants for different services you sign up for. Also note that you can substitute @googlemail.com for @gmail.com.