Read 'Getting to Yes' and 'Bargaining for Advantage.' Use the principles when making any large purchase or changing jobs.
Most retail cashiers can also give 10% discounts without approval. Find opportunities to negotiate.
Buy things on craigslist and be patient.
If you read the books, you'll also see more everyday situations and compromises as chances to use negotiating skills. There's no reason it needs to be money.
I don't have as much experience with pandas, but I've used window functions and psql queries in place of that sort of data munging for production web applications. We have tens of millions of rows and near real time reporting requirements.
Read 'Getting to Yes' and 'Bargaining to Advantage' for more specifics about this discussion. I think everyone should read them. It doesn't hurt to include 'Influence.'
Also, a single number will be misleading. France has fewer immigrants and thus a different cultural structure. It also has very different neighbors and trade partners.
I've had Straight Talk for a year. I setup auto-pay, got my SIM cards, and have never needed support. My data usage is always under 2GB and I'm aware of using WiFi where possible. It's been a dream.
I've also never had a good customer experience with AT&T, Verizon, etc.
Read 'Getting to Yes' and 'Bargaining for Advantage.' Use the principles when making any large purchase or changing jobs.
Most retail cashiers can also give 10% discounts without approval. Find opportunities to negotiate.
Buy things on craigslist and be patient.
If you read the books, you'll also see more everyday situations and compromises as chances to use negotiating skills. There's no reason it needs to be money.
If you're in software you can also read patio11's valuable thoughts: http://www.kalzumeus.com/2012/01/23/salary-negotiation/