On the subject of baking I do not have anything fancy to help me in my baking. I covert a Kenwood Chef but cannot as yet justify the expense.
My biggest baking allies are my mixing bowl and my spoons.
I personally love my Mason and Cash bowl. It is big enough to hold the batter for the cakes I make and big enough to catch most of the splashes when I am being a bit enthusiastic with the mixing.
As for spoons I have to have a good wooden spoon, it does not have to be expensive but it needs to feel right. Until recently I have use a medium handled oval spoon but the last few bakes I have used a slotted wooden spoon which has been very effective. My other ally is my large metal spoon. It it a serving spoon and it cuts through the batter to fold in the flour in super quick time. You will notice a lack of a sieve, I occasionally use one when I think about it but not always and it makes some difference but not essential if you are prepared to fold in properly.
In terms of ingredients I use whatever the cheapest flour is in the supermarket, free range eggs, granulated sugar not caster as I prefer a grainier texture and for preference Stork margarine although these days I have to use dairy free for R and so use either Vitalite or Pure.