gpg key in memory

[Benedict Verheyen <linux4bene@pandora.be>]

Hi,

is it possible (like with ssh) to have gpg ony ask you your passphrase
once and then remember it for the duration of a session?
This would be handy if one is writing a lot of emails and you don't want
to bother every single time to type your passphrase.
I chose quit a long and difficult passphrase and it isn't fun to type
it over and over again when i want to encrypt or sign an email.

Any sollution to this other than chosing a simpler and shorter
passphrase?

------ 
Benedict Verheyen 
Linux 2.4.20 AMD Athlon(tm) Processor AuthenticAMD GNU/Linux