You read my mind on this one. I was just logging on to ask this same question.
I have WTF Fridays right now. I want to start Timeless Tuesday (comment on trends and memories from your favorite decade) and Makeup Tip Monday (hoping to have video with this one).
I do take part in Wordless Wednesday as well.
My question to add to this is how do you start up a successful weekly post that others can join in on? I would love to make this kind of networking fun and have graphics others can add with the theme of the day, have lot of linky love, etc.
I always try to post 2-3 times a week on almost daily observations. Once upon a time I tried to post weekly ... then monthly lists, but it was really too time consuming so now I post randomly. If I try to schedule my posts they end up feeling like a chore... and I want to enjoy my blog!
I do a lot of book reviews, so participate in Mailbox Monday (list of what arrived in the mailbox the week before), Teaser Tuesday (few sentences to tease about a current book I'm reading), Tuesday Thinger (hosted by me - a great way to learn about the features of Library Thing and other various topics).
I've been trying to think of another general one to host on a weekly basis, and am coming up blank at the moment.
The best way to do it is to come up with a good general topic and then start posting (create a button), invite others to post and link to your post on their site etc.
I started a Tuesdays With Tyler theme where every Tuesday I write either an event or something special that pertains to my son. It will be a nice memory for me. I wanted to do something different.