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+These are some notes for myself to handle tag rules and tag modes:
+
+
+#### Nothing
+
+* Normal tag, tag mode _"nothing"_
+  * Accepts any transaction.
+
+
+#### Balancing act
+
+Tag to pay something large. The money comes from your savings account, goes to your checking account and to the merchant. For example: save up for a car on your savings account, move it to your checking account, pay the car dealer. Two transactions. Two transactions at most. One transfer, one expense.
+
+#### Advance payment.
+
+This one is more complex. It starts with ONE expense. For example, a restaurant bill. People pay you back the restaurant bill (split costs). So one expense, unlimited deposits. 
+
+* Accept only one expense.
+* Accepts unlimited deposits.
+* Expenses and deposits must be from / go to the same asset account.
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