Although it seems cumbersome to weigh your coffee instead of just scooping it, you can work more accurately (and thus experiment more) if you weigh the coffee. In the beginning, I used the kitchen scale I had, but it was a bit inaccurate and the tare button did not work very well. I bought myself this Salter 1270 BKDR scale instead.
This electric scale works with 2 lithium batteries (CR2032) of 3 volts each. Due to its small size (13 × 7,5 × 2,5 cm), this scale is very suitable to be put in your suitcase or backpack when travelling. You can weigh up to 500 grams with this scale. Up to 200 grams you have an accuracy of 0.05 grams, after that the accuracy is 0.1 grams. The scale has an on-off button, a tare button and a button to switch between grams and ounces. The translucent weighing platform also serves as a cover. I paid € 29.99 for this scale ($ 35.16 or £ 25.59), which is cheap compared to the exorbitant prices you sometimes see.
If you are interested in the differences between weighing and scooping coffee, and the advantages of weighing, be sure to watch the interesting vlog that coffee expert James Hoffmann made about how he hates the scoop.
The Caffeinated Librarian or: How I Learned to Deal with Cacocafephobia and Love Coffee 