A Grocery bag can get heavy to carry if you fill it with heavy items like drinks or cat litter etc..
Why not modify it to add a backpack feature to it :)?
This is by the way a unique marketable idea..unfortunately, I have neither the money to patent it, nor the means to take it from design to mass production..
Step 1: Materials and Tools
• A heavy duty grocery bag.
• Heavy duty duct tape.
• A cutter.
• super glue.
Step 2: Reinforce the Bag
• Draw 2 parallel straight lines starting from the bag handles, going all the way to the other sides of the handles.
• Tape one layer of the heavy duty duct tape on them from the outside, and one on the inside.
Step 3: The Holes
Use the cutter to make small horizontal cuts in the bag through the duct tape (refer to the 2 photos in this step for the position of the holes).
Step 4: The Shoelace
Once done, place duct tape where the shoelace comes out at the bottom side (last photo).
Step 5: Super Glue
P.S: I made a mistake here in the first photo , tied the knots in the middle, as a result, I couldn't close the bag anymore..
So I had to cut and get the knots through the holes so that they are positioned at the front side of the bag..
Step 6: Test
What's awesome about this Mod, is that the bag can still be folded normally and transported around.
I hope You enjoyed this I'stble and found it useful!
Feel free to browse my other projects on my profile page.