I know what you mean by missing tools. I loved having a large shop. I miss having a mill and a lathe. sometimes what should take a minute or two to make a part takes a lot longer setting up jigs to use hand tools to do the same thing. I too have some pretty terrible habits. I still have all my fingers so they can't be too bad.
If you are making holes in sheet metal and don't have access to a press, a step drill is a really cheap alternative. I use mine a lot but watch your fingers!!