Yeast Transformation Buffer
$30.00
50 grams of Tris Borate EDTA (TBE) Buffer. Enough for 16.8g/L Liters of TBE buffer.
I used it for many DNA gels and it works very well. It can be reused once It takes a wile to mix so it's good to have a magnetic stirrer . And of course the price is very reasonable so it's perfect for a budget minded small lab.