If you really needed to avoid making high transaction fees then try and follow these few steps and advise to spend less on your transactions.

1. Make weekend transactions often
2. Always check the mempool congestion and the transaction fee for each category of priority.
3. Make use of a wallet like electrum which support RBF in case you need to pump your fee.
4. Use viabtc mining pool to boost your transaction

Remember when you're making use of the mempool, it gives you the accurate rate you will be charged as transaction fee before making anyone, if it's ok by you, then you can proceed or keep the track on till you finds it less busy.