(Living in the UK so getting hold of a Firearm is not very viable, that in mind...) There's a garden center about a mile away from my house that I used to work at and spent every day checking out the different implements just incase of Z-Day.
Weapon of choice: Circular edged, wooden garden hoe (Looks a bit like this "[]---)" but with a more circular curve). Reasons include the hoe was quite strong, yet lightweight; was somewhere near 1.5-2m in length (can't remember exactly) which is about as close as I want to get to a Zombie in close combat; was circular bladed rather than square ([]---])or v-shaped ([]--->) which means less chance of getting stuck inside zombie; and requires no fuel to sustain and can be edged to a much sharper curve. Also, if you get good with this weapon (swinging it around and slicing through with it), very easy to replace; I could have picked up about 10 from the garden store, and variations of this garden hoe would require little retraining to become effective with and could be found in almost every shed in the UK.
Otherwise, if petrol and electricity aren't a problem, the garden center had stupid amounts of hedge trimmers, easily modifiable petrol lawn mowers etc. Plus lots of solar panels which, if used together, could produce enough power for essentials if you had some electrical engineering knowledge.
And naturally the standard wood axes, crowbars (surprisingly heavy btw), hell we sold huge blocks of wood for cutting which, with the amount of saws available, could be sharpened into spikes to make a stronghold that looked akin to a hedgehog (would be interesting to watch Zombies impale themselves on); or could be cut down smaller to make one-shot spears.
Yeah, the job was boring, so I mentally turned that place into the realistically best thing a Brit could find to help when Z-Day comes.