While not a typical backpacking site Lee Valley tools carries things we use like sun hats, Mosquito jackets, Super T glue -one of the best out there, cable ties, rubber strapping , rare earth magnets as well as great woodworking tools. Free shipping with no minimum is pretty amazing especially since regs make the Super T and rare earth magnets go ground shipping.
https://www.leevalley.com/US/shopping
