Growing Vertically

So I started this square foot garden thing this year and I am NOT a green thumb. I have relatively little experience gardening and loads less in building things. So when trying to envision what I could put in my garden to help my tomatoes and cucumbers grow vertically in my square foot garden I get easily overwhelmed! And since they are growing by leaps and bounds each day lately, this city girl realized she better get her rear in gear! I spent a lot of time searching online for vertical growing methods and found lots and lots of ways to build trellises and such but like I said, I'm not a builder! So I was THRILLED to find these ideas for staking my tomatoes and cucumbers to help them grow vertically in their little square foot of space. Think it'll work? I'm a tad bit worried about whether these will hold up under the weight of the fruit. What simple methods have you tried for vertical gardening? Got anything super easy? I'd love to hear it!