If you want to improve your workflow even more and you have documents you always need to send with the same configuration then you can add custom buttons. On window.SR_SETTINGS you can add a field 'prefilled_signers' which is a json object.
For every signer you have the option of supplying either an email, or an object_type and id. If the latter is chosen you will have two options of selecting the contact from a dropdown list with all contacts linked to the object.
Within window.SR_SETTINGS:
prefilled_signers: [{
email: 'email1@example.com', // Salesforce tags can be used {[Contact.Email}}
level:'signature', // Choose either signature, cc, aprove
order:0 // Signers will receive emails in this order. Same order can be used for multiple signers
},{
email:'email2@example.com',
order:0, // By default all signers will receive the SignRequest at the same time. Make this '1' to only send the SignRequest after signers with order '0' have signed.
level:'cc'
}],