Please capitalize where necessary: they have been around for a while, so their experience and desire to make things work will make you a very happy customer.
A: They have been around for a while, so their experience and desire to make things work will make you a very happy customer.

Please capitalize where necessary: ideal for all polar-compatible receivers
A: ideal for all Polar-compatible receivers

Please capitalize where necessary: on saturday it will be cloudy, but mostly dry. morning temperatures will be around 5 c. during the day they will reach a maximum of 14 c. low temperatures at night will be around 5c. northerly winds are weak.
A: On Saturday it will be cloudy, but mostly dry. Morning temperatures will be around 5 C. During the day they will reach a maximum of 14 C. Low temperatures at night will be around 5C. Northerly winds are weak.

Please capitalize where necessary: wikipedia changes its terms of use to avoid covert payments by editing entries quiviger
A:
Wikipedia changes its terms of use to avoid covert payments by editing entries Quiviger