Too Many Social Accounts

I've been meaning to add and focus on more social accounts for my Ebay store, and honestly, the task doesn't really excite me. On one hand, I'd love to be able to promote my stuff on these popular sites and in turn gain more audience, but I sometimes update with 10 or more items and it just seems too hard to keep up with all these accounts on top of having to take care of my store and inventory. Not to mention I already have accounts for each on my blog and that also takes some time to update whenever I put out a new article. I hate to think I'm missing out on potential audience, though, so I'm thinking of still giving it a shot. Do you guys connect social media sites for each of your online ventures, or do you leave them out for some of them? Do you have any special tools that you use to keep track and update all of them?