I submitted something to The Haven recently after being on their list for months. The problem was, I didn't think anything I'd written was actually funny. Lots of my stuff is mildly sarcastic, peppered with dry wit, but I wasn't sure anything was actually 'funny'. Until another writer told me it doesn't matter - as nothing else on there is laugh out loud funny either. So I just sent them something and they published quickly, which was nice. I always intended to get there eventually. I have more to contribute to, and ideally try to send each publication something every month... but I have my favourites.