Simply visit this page, type in how much you want, and make the donation.

The amounts are listed as estimates, because the amount you receive is based on how much PayPal removes in fees, which varies from user to user. A further percentage of the transaction is taken as a donation to the website.
If the amount you receive isn't reasonably close to how much was listed, simply message me, and I'll make the adjustment to your account.

Due to PayPal's flat-rate 30 cent fee, the more you donate, the higher dollar-to-LCash value there is. A 30 cent fee on a $1 donation is 30% of the donation. A 30 cent fee on a $10 donation is only 3% of the donation. Take this into consideration before making multiple, small donations.