Not skimp so much on the motherboard
My pc for a budget of £600 was generated a £30 mobo which I feel is a terrible place to skimp- almost as bad as PSU.
The cheapest boards I tend to recommend are right around the 40 GBP price point, which is where the entry level H81 chipset boards come in.
There is little reason to spend more than is absolutely necessary on the motherboard for the features you require, and for most users that list tends to be 2-3 SATA ports, one of which should be SATA 6gbps if you are using an SSD and USB 3.0 support, in addition to (obviously) supporting the components which you want to add.
A motherboard has little to no impact on the performance of the build so there are much better places to spend the money than on an extravagant motherboard which would be largely wasted considering most people’s needs.
There is a difference between skimping and knowing when not to spend extra money on something which is not beneficial. and I try very hard to maximize gaming performance at each budget range.
For PSUs, a bad PSU can ruin a build and cause major issues. Even the cheapest of motherboards will work just fine and so it is features which are most important (and when it comes to overclocking, the capability in that regard)