Time and time again I find myself having to pack my rain gear with the loads of other misc. items into my backpack and hope they all fit.
I've always knew that I wanted to use saddlebags to solve this problem but I could never convince myself to dish out $80+.
So I discovered that the most economical and effective alternative was to use toolboxes.
They can be locked and waterproofed but best of all: they're cheap.
Note: These particular toolboxes are NOT waterproof. Use your discretion as to how you'd like to use them and make improvements/adjustments according to your needs.
Step 1: Gather your tools and materials
Next, pick up the misc. nuts, bolts and flat/lock washers. I've estimated it to run about $5 but I just found them around the garage (FREE!).
Lastly, you'll need to do some minor custom metal work in order to form a rack for the toolboxes to be bolted onto. I had a couple of old refrigerator racks that I had cut to sizesuper heated with a blow torch and bent into shape. Have fun but be safe! (Fiiiireee gooooood.)
It helps to have a screwdriver with drill bits and pliers of some type to bore holes into the toolbox and tighten the screws/nuts.
CHECK OUT THE REVISED VERSION: http://www.instructables.com/id/Revised-Toolbox-Saddlebags-for-under-20/