How do you change the default column widths so they dont have to be adjusted everytime

You can change the settings in the Custom Form Styles page, lab75. 

Let me show you how: 

1. Click on the Gear icon and select Custom Form Styles. 
2. Edit your default form style. 
3. Select the Content tab and the Table section. 
4. Click on the hyperlinked EDIT LABELS AND WIDTHS.
5. From there you can adjust the widths of your preference. 
6. Click Done to save changes.  

You can also check this article for more details on how to customize form templates. 

However, if you are referring to the transaction page, changes will only take effect to the same transaction. 

The Community is around to help you if you have other concerns. Have a good one!