Has anyone ever told you that your relationship with social networking is unhealthy?

Well, CultureMap wants to reward you for it this Saturday at Museum District Day.

As if you needed another reason to enjoy this cultural bonanza — with free admission to 17 of Houston's very best museums all day and free shuttles taking you from spot to spot — now we're throwing in the chance to win free memberships and passes to the participating museums.

What do you have to do to win? Show up to Museum District Day with your favorite social network in tow — and then show us. Visit one (or all 17, if you're particularly ambitious) of the featured museums. Prove it, and you're entered to win.

So how do you "prove it"?

It's all about check-ins and photos. You can prove it by doing one (and only one!) of these three things on Museum District Day:

1. Check in at any participating museum on location-based social networks Gowalla or Foursquare,
2. Post a photo to Twitter from any participating museum, and hashtag your tweet with #mdd, or
3. Post a photo to CultureMap's Facebook Fan Page from any participating museum.

And that's it.

Show us where you were on Museum District Day, and voila! You're automatically entered to win great prizes. We'll notify the lucky winners early next week.

Does it get any easier than that? Probably not.

Less than 24 hours 'til the fun begins! It's the only contest where you just have to show up to be a winner. It's a win-win situation — and hopefully a big win for you.