When I first moved into my house we had ice storm and I wasn't exactly prepared for it yet. Had a portable generator rigged up to power things but not a proper transfer switch in use at that time. Though I felt the same way about being capable of doing the right things even though not actually code compliant or even just industry standard to do what I did, I caught myself almost turning the main back on before disconnecting the generator - was out for three days and eager to get back on utility supply and not thinking all that clearly.
Bottom line do it the right way.